JP7050446B2 - Rotation transmission mechanism and damper device - Google Patents

Rotation transmission mechanism and damper device Download PDF

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JP7050446B2
JP7050446B2 JP2017183715A JP2017183715A JP7050446B2 JP 7050446 B2 JP7050446 B2 JP 7050446B2 JP 2017183715 A JP2017183715 A JP 2017183715A JP 2017183715 A JP2017183715 A JP 2017183715A JP 7050446 B2 JP7050446 B2 JP 7050446B2
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vehicle
driven
rotation
rotation transmission
driven vehicle
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JP2019060364A (en
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岳彦 矢澤
浩之 岩下
悟 横江
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Nidec Sankyo Corp
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Nidec Sankyo Corp
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Priority to JP2017183715A priority Critical patent/JP7050446B2/en
Priority to US16/136,888 priority patent/US11199040B2/en
Priority to CN201811119846.1A priority patent/CN109560664B/en
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/614—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
    • H02K7/075—Means for converting reciprocating motion into rotary motion or vice versa using crankshafts or eccentrics
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F25D17/045—Air flow control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/21—Brakes
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
    • E05Y2201/262—Type of motion, e.g. braking
    • E05Y2201/266—Type of motion, e.g. braking rotary
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/638—Cams; Ramps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E05Y2201/712—Toothed gearing with incomplete toothing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/31—Application of doors, windows, wings or fittings thereof for domestic appliances for refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/066—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the air supply

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmission Devices (AREA)
  • Gear Transmission (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Description

本発明は、駆動車の回転を従動車に伝達する回転伝達機構およびダンパ装置に関する。 The present invention relates to a rotation transmission mechanism and a damper device that transmit the rotation of a driving vehicle to a driven vehicle.

冷蔵庫の冷気通路等に用いられるダンパ装置は、例えば、モータおよび輪列を備えたバッフル駆動機構によってバッフルを駆動してフレームに形成された開口部を開閉する。特許文献１には、この種のダンパ装置が開示されている。特許文献１のダンパ装置は、モータを回転させてバッフルを開方向に駆動する。また、モータを逆回転させてバッフルを閉方向に駆動する。 A damper device used for a cold air passage of a refrigerator or the like drives a baffle by, for example, a baffle drive mechanism including a motor and a train wheel to open and close an opening formed in a frame. Patent Document 1 discloses this type of damper device. The damper device of Patent Document 1 rotates a motor to drive the baffle in the opening direction. In addition, the motor is rotated in the reverse direction to drive the baffle in the closed direction.

特開平１０－３０６９７０号公報Japanese Unexamined Patent Publication No. 10-306970

特許文献１に記載のダンパ装置等において、モータを双方向に回転させる場合、制御回路や駆動回路が複雑になるため、コストが増大してしまう。そこで、本願出願人は、モータの１方向の回転に基づきバッフルを開閉するダンパ装置を出願した。例えば、特願２０１７－１０４１２１のダンパ装置は、モータの回転をバッフルに伝達する回転伝達機構として、駆動歯が階段状に形成された駆動車と、従動歯が階段状に形成された従動車を備える。従動車はバッフルを閉方向に付勢するばねを介して付勢されており、駆動車は、従動歯が摺動するカム面を備える。従って、バッフルを開く際は、階段状に形成された従動歯と駆動歯が順に噛み合って駆動車の回転が従動車に伝達され、ばねの付勢力に逆らってバッフルおよび従動車を回転させる。一方、駆動歯と従動歯の噛み合いが終わる位置まで回転すると、その後は、従動歯が駆動車のカム面に摺動するので、ばねの付勢力により、バッフルが閉じる方向に従動車が回転する。従って、モータの１方向の回転によってバッフルを開閉することができる。 In the damper device or the like described in Patent Document 1, when the motor is rotated in both directions, the control circuit and the drive circuit become complicated, so that the cost increases. Therefore, the applicant of the present application has applied for a damper device that opens and closes the baffle based on the rotation of the motor in one direction. For example, the damper device of Japanese Patent Application No. 2017-104121 includes a drive vehicle in which the drive teeth are formed in a stepped shape and a driven vehicle in which the driven teeth are formed in a stepped shape as a rotation transmission mechanism for transmitting the rotation of the motor to the baffle. Be prepared. The driven vehicle is urged via a spring that urges the baffle in the closing direction, and the driven vehicle has a cam surface on which the driven teeth slide. Therefore, when the baffle is opened, the driven teeth formed in a stepped shape and the driving teeth mesh with each other in order, and the rotation of the driving vehicle is transmitted to the driven vehicle, and the baffle and the driven vehicle are rotated against the urging force of the spring. On the other hand, when the driven tooth rotates to a position where the meshing of the driven tooth ends, after that, the driven tooth slides on the cam surface of the driving vehicle, so that the driven vehicle rotates in the direction in which the baffle closes due to the urging force of the spring. Therefore, the baffle can be opened and closed by rotating the motor in one direction.

特願２０１７－１０４１２１の回転伝達機構は、複数の従動歯が順次カム面に摺動する際に回転速度が変化する。ここで、従動車は、カム面に摺動する従動歯が切り換わる際に回転速度が変化する。そして、駆動車は、従動車を付勢するばねの付勢力に抗して回っているため、カム面に接触する従動歯が切り換わる際、駆動車の回転に乱れが生じる。例えば、駆動車が瞬間的に逆回転するような動きが起こる。そして、この動きが駆動車から駆動力の伝達経路の上流側に伝達されてノイズが発生する。例えば、最も上流側に位置するウォームが軸方向にぶれるように取り付けられている際には、駆動車の回転の乱れが伝達されるとウォームが軸方向にぶれて軸方向の両側の部品と衝突し、衝突音が発生する。 The rotation transmission mechanism of Japanese Patent Application No. 2017-104121 changes the rotation speed when a plurality of driven teeth sequentially slide on the cam surface. Here, the rotational speed of the driven vehicle changes when the driven teeth sliding on the cam surface are switched. Since the drive vehicle rotates against the urging force of the spring that urges the driven vehicle, the rotation of the driven vehicle is disturbed when the driven teeth in contact with the cam surface are switched. For example, a movement occurs in which the driving vehicle momentarily rotates in the reverse direction. Then, this movement is transmitted from the driving vehicle to the upstream side of the driving force transmission path, and noise is generated. For example, when the worm located on the most upstream side is installed so as to swing in the axial direction, when the turbulence of the rotation of the driving vehicle is transmitted, the worm shakes in the axial direction and collides with the parts on both sides in the axial direction. However, a collision sound is generated.

以上の問題点に鑑みて、本発明の課題は、駆動車と従動車が複数の噛合い部を備えるとともに、付勢部材によって駆動車による駆動方向と逆方向に従動車を付勢した回転駆動機構において、駆動車と従動車との接触箇所が切り換わる際の回転速度の変化に起因するノイズを低減させることにある。 In view of the above problems, the subject of the present invention is that the driving vehicle and the driven vehicle are provided with a plurality of meshing portions, and the driven vehicle is urged by an urging member in a direction opposite to the driving direction by the driving vehicle. The purpose of the mechanism is to reduce noise caused by a change in the rotational speed when the contact point between the driving vehicle and the driven vehicle is switched.

上記課題を解決するために、本発明は、駆動源からの動力を伝達する回転伝達機構であって、駆動車および従動車を含む複数の回転伝達部材と、前記従動車を前記駆動源の動力による回転方向と逆方向に付勢する付勢部材と、回転負荷を発生させるブレーキ部材と、を有し、前記駆動車と前記従動車は、前記駆動車の回転を前記従動車に伝達する噛合い部を備え、前記駆動車は、前記噛合い部が噛み合わない回転位置で前記噛合い部の前記従動車側の部位が摺動するカム面形成部を備え、前記ブレーキ部材は、前記駆動源の動力を伝達する動力伝達経路において、前記従動車より前記動力伝達経路の上流側に配置される前記回転伝達部材に回転負荷を加えることを特徴とする。 In order to solve the above problems, the present invention is a rotation transmission mechanism for transmitting power from a drive source, wherein a plurality of rotation transmission members including a drive vehicle and a driven vehicle and the driven vehicle are used as the power of the drive source. It has an urging member for urging in the direction opposite to the rotation direction due to the above , and a brake member for generating a rotational load, and the driving vehicle and the driven vehicle engage with each other to transmit the rotation of the driving vehicle to the driven vehicle. The drive vehicle is provided with a cam surface forming portion on which the portion of the meshing portion on the driven vehicle side slides at a rotation position where the meshing portion does not mesh, and the brake member is the drive source. In the power transmission path for transmitting the power of the vehicle , a rotational load is applied to the rotation transmission member arranged on the upstream side of the power transmission path from the driven vehicle.

本発明によれば、駆動車と従動車は、噛合い部を備えるとともに、駆動車は、噛合い部の従動車側の部位が摺動するカム面形成部を備える。従って、噛合い部が噛み合う回転位置では、駆動車から従動車に回転が伝達される。また、噛合いが外れた回転位置では、従動車側の噛合い部が駆動車のカム面形成部に摺動するので、従動車は、付勢部材の付勢力により、駆動車から回転が伝達される際とは逆方向に回転する。従って、一方側の回転のみを供給する駆動源を用いて、従動車を往復回転させることができる。また、このような駆動車および従動車は、従来、駆動車と従動車とが接触する部位が切り換わる際に、駆動車の回転に乱れが生じることがあったが、本発明では、従動車より動力伝達経路の上流側に配置される回転伝達部材に、回転負荷を発生させるブレーキ部材が配置されている。これにより、動力伝達経路の途中で回転の乱れが駆動源側に伝達されることを抑制できる。従って、駆動車の回転の乱れに起因するノイズを抑制できる。 According to the present invention, the drive vehicle and the driven vehicle are provided with a meshing portion, and the drive vehicle is provided with a cam surface forming portion on which a portion of the meshing portion on the driven vehicle side slides. Therefore, at the rotation position where the meshing portion meshes, the rotation is transmitted from the driving vehicle to the driven vehicle. Further, at the rotation position where the meshing is disengaged, the meshing portion on the driven vehicle side slides on the cam surface forming portion of the driving vehicle, so that the driven vehicle transmits the rotation from the driving vehicle by the urging force of the urging member. It rotates in the opposite direction to when it is done. Therefore, the driven vehicle can be reciprocated by using a drive source that supplies only one side of rotation. Further, in such a driving vehicle and a driven vehicle, conventionally, when the portion where the driving vehicle and the driven vehicle come into contact with each other is switched, the rotation of the driving vehicle may be disturbed. However, in the present invention, the driven vehicle may be disturbed. A brake member that generates a rotational load is arranged in the rotation transmission member arranged on the upstream side of the power transmission path. As a result, it is possible to suppress the disturbance of rotation from being transmitted to the drive source side in the middle of the power transmission path. Therefore, it is possible to suppress noise caused by the disturbance of the rotation of the driving vehicle.

本発明において、前記駆動源はモータであり、前記複数の回転伝達部材が、前記モータの出力軸に連結されたウォームを含む場合には、前記ブレーキ部材は、前記ウォームより前記動力伝達経路の下流側に設けられていればよい。このようにすると、ウォームに回転の乱れが伝達されることを抑制できる。従って、ウォームが軸方向にぶれて軸方向の両側の部品と衝突することによるノイズ（ウォームの叩き音）を抑制できる。また、ウォームに近い上流側の回転伝達部材は回転トルクが小さいため、必要な回転負荷が小さい。従って、ウォームの近くにブレーキ部材を設けることにより、ブレーキ部材を小型化することができる。 In the present invention, when the drive source is a motor and the plurality of rotation transmission members include a worm connected to an output shaft of the motor, the brake member is downstream of the worm in the power transmission path. It suffices if it is provided on the side. By doing so, it is possible to suppress the transmission of rotational turbulence to the worm. Therefore, it is possible to suppress noise (striking sound of the worm) caused by the worm shaking in the axial direction and colliding with the parts on both sides in the axial direction. Further, since the rotation transmission member on the upstream side near the worm has a small rotation torque, the required rotation load is small. Therefore, by providing the brake member near the worm, the brake member can be miniaturized.

本発明において、前記複数の回転伝達部材が、前記ウォームと噛合う１番歯車、および、前記動力伝達経路において前記１番歯車と前記駆動車との間に配置される２番歯車を備える場合には、前記ブレーキ部材は、前記２番歯車に回転負荷を加えるように構成することが好ましい。このようにすると、駆動車に回転負荷を加える場合よりも必要な回転負荷が小さい。従って、駆動車に回転負荷を加える場合よりもブレーキ部材を小型化することができる。 In the present invention, when the plurality of rotation transmission members include a first gear that meshes with the worm and a second gear that is arranged between the first gear and the drive vehicle in the power transmission path. It is preferable that the brake member is configured to apply a rotational load to the second gear. In this way, the required rotational load is smaller than when a rotational load is applied to the driving vehicle. Therefore, the brake member can be made smaller than when a rotational load is applied to the driving vehicle.

本発明において、前記ブレーキ部材は弾性部材であることが好ましい。このようにすると、回転伝達部材とブレーキ部材とを容易に接触させて回転負荷を加えることができる。また、回転伝達部材のガタつきを解消できる。 In the present invention, the brake member is preferably an elastic member. In this way, the rotation transmission member and the brake member can be easily brought into contact with each other to apply a rotation load. In addition, the backlash of the rotation transmission member can be eliminated.

本発明において、前記ブレーキ部材は、前記複数の回転伝達部材のうち、回転負荷が加えられる被負荷部材の回転軸線方向の一方側もしくは他方側の端面に接触することが好ましい。このようにすると、回転伝達部材の回転軸線方向のガタつきを解消できる。また、回転伝達部材の回転軸線方向の一方側あるいは他方側にブレーキ部材を配置する場合には、回転伝達機構の平面配置を変更する必要がない。従って、ブレーキ部材を追加するための設計変更を少なくすることができる。 In the present invention, it is preferable that the brake member comes into contact with one or the other end face in the rotation axis direction of the loaded member to which the rotation load is applied among the plurality of rotation transmission members. By doing so, it is possible to eliminate rattling in the rotation axis direction of the rotation transmission member. Further, when the brake member is arranged on one side or the other side in the rotation axis direction of the rotation transmission member, it is not necessary to change the plane arrangement of the rotation transmission mechanism. Therefore, it is possible to reduce the number of design changes for adding the brake member.

例えば、前記ブレーキ部材は、バネワッシャーであることが好ましい。このようにすると、回転伝達部材の取付け時にバネワッシャーを同時に取り付ければよいため、ブレーキ部材を簡単に組み込むことができる。 For example, the brake member is preferably a spring washer. In this way, since the spring washer may be attached at the same time as the rotation transmission member is attached, the brake member can be easily incorporated.

本発明において、前記カム面形成部は、複数のカム面を備え、前記噛合い部の前記従動
車側の部位は、前記駆動車の回転に伴い、前記複数のカム面に対して順に摺動する。このようにすると、従動車と接触するカム面が順に切り換わる際に、駆動車の回転に乱れが生じたとしても、駆動車の回転の乱れが駆動源側に伝達されることを抑制できる。 In the present invention, the cam surface forming portion includes a plurality of cam surfaces, and the portion of the meshing portion on the driven vehicle side slides in order with respect to the plurality of cam surfaces as the driving vehicle rotates. do. By doing so, even if the rotation of the driving vehicle is disturbed when the cam surfaces in contact with the driven vehicle are sequentially switched, it is possible to suppress the disturbance of the rotation of the driving vehicle from being transmitted to the drive source side.

本発明において、前記駆動車と前記従動車は、前記噛合い部を複数備え、前記複数の噛合い部は、前記駆動車および前記従動車の回転軸線方向で異なる位置に形成されている。このようにすると、複数の噛合い部を順次噛み合わせて従動車を駆動し、その後、駆動車と従動車との噛合いが外れると、付勢部材の付勢力によって、複数の噛合い部の従動車側の部位をそれぞれ対応するカム面に摺動させながら従動車を逆方向に回転させることができる。従って、一方側の回転のみを供給する駆動源を用いて、従動車を往復回転させることができる。 In the present invention, the driving vehicle and the driven vehicle are provided with a plurality of the meshing portions, and the plurality of meshing portions are formed at different positions in the rotation axis direction of the driving vehicle and the driven vehicle. In this way, the driven vehicle is driven by sequentially engaging the plurality of meshing portions, and then when the driving vehicle and the driven vehicle are disengaged, the urging force of the urging member causes the plurality of meshing portions to be engaged. The driven vehicle can be rotated in the opposite direction while sliding the parts on the driven vehicle side on the corresponding cam surfaces. Therefore, the driven vehicle can be reciprocated by using a drive source that supplies only one side of rotation.

本発明において、前記駆動車には、前記駆動車の外周面において階段状に配置される複数の駆動歯が設けられ、前記従動車には、前記駆動車の回転に伴って前記複数の駆動歯と順に噛み合う複数の従動歯が前記従動車の外周面に階段状に設けられ、前記噛合い部は、前記駆動歯と前記従動歯の対によって構成されている態様を採用することができる。このようにすると、駆動歯と従動歯とを順次噛み合わせて従動車を駆動し、その後、駆動歯と従動歯との噛み合いが外れると、付勢部材の付勢力によって従動車を逆方向に回転させることができる。従って、一方側の回転のみを供給する駆動源を用いて、従動車を往復回転させることができる。 In the present invention, the drive vehicle is provided with a plurality of drive teeth arranged in a stepped manner on the outer peripheral surface of the drive vehicle, and the driven vehicle has the plurality of drive teeth as the drive vehicle rotates. A plurality of driven teeth that mesh with each other in order can be provided on the outer peripheral surface of the driven vehicle in a stepped manner, and the meshing portion can adopt an embodiment composed of a pair of the driving tooth and the driven tooth. In this way, the drive tooth and the driven tooth are sequentially meshed to drive the driven vehicle, and then when the drive tooth and the driven tooth are disengaged, the driven vehicle is rotated in the opposite direction by the urging force of the urging member. Can be made to. Therefore, the driven vehicle can be reciprocated by using a drive source that supplies only one side of rotation.

本発明において、前記複数のカム面は、周方向の一方側から他方側に向かって外径が縮小しており、且つ、周方向で隣り合うカム面は、当該カム面の外径の周方向での減少率が異なる態様を採用することができる。このようにすると、付勢部材の付勢力によって従動車を回転させる際、従動歯と摺動するカム面が順次切り換わるのに応じて従動車の回転速度を変化させることができる。従って、例えば、最初はゆっくり従動車を回転させ、次第に回転速度を上げることができる。また、このような速度変化を付けた場合でも、従動車の回転速度が変化する際の駆動車の回転の乱れに起因するノイズを抑制できる。 In the present invention, the outer diameters of the plurality of cam surfaces are reduced from one side in the circumferential direction toward the other side, and the adjacent cam surfaces in the circumferential direction are in the circumferential direction of the outer diameter of the cam surfaces. It is possible to adopt an embodiment in which the reduction rate is different. By doing so, when the driven vehicle is rotated by the urging force of the urging member, the rotation speed of the driven vehicle can be changed according to the sequential switching of the cam surface sliding with the driven teeth. Therefore, for example, the driven vehicle can be slowly rotated at first, and the rotation speed can be gradually increased. Further, even when such a speed change is added, it is possible to suppress noise caused by the disturbance of the rotation of the driving vehicle when the rotation speed of the driven vehicle changes.

本発明において、前記従動車は、前記従動車の回転軸線方向から見て扇型である。本発明では、従動車は噛合い部が形成されている部分が駆動車に対して往復回転すればよいので、扇型に形成することで無駄な部分を省略できる。従って、従動車を小型化し、省スペース化を図ることができる。 In the present invention, the driven vehicle is fan-shaped when viewed from the direction of the rotation axis of the driven vehicle. In the present invention, in the driven vehicle, the portion where the meshing portion is formed may rotate reciprocating with respect to the driving vehicle, so that the unnecessary portion can be omitted by forming the driven vehicle in a fan shape. Therefore, it is possible to reduce the size of the driven vehicle and save space.

次に、本発明は、上記の回転伝達機構を備えたダンパ装置であって、開口部が形成されたフレームと、前記駆動車を駆動するモータと、前記従動車の回転が伝達されて前記開口部を開閉するバッフルと、を有することを特徴とする。このように、本発明の回転伝達機構を用いることにより、バッフルが閉じる際の速度に変化を付けた場合でも、駆動車と従動車とが接触する箇所が切り換わることに起因するノイズを抑制することができる。 Next, the present invention is a damper device provided with the above-mentioned rotation transmission mechanism, in which the rotation of the frame formed with the opening, the motor for driving the driving vehicle, and the driven vehicle is transmitted to the opening. It is characterized by having a baffle that opens and closes a portion. As described above, by using the rotation transmission mechanism of the present invention, even when the speed at which the baffle is closed is changed, the noise caused by the switching of the contact points between the driving vehicle and the driven vehicle is suppressed. be able to.

本発明において、前記モータは、前記駆動車を一方側に駆動させる回転駆動力のみを出力可能である構成を採用することができる。これにより、安価なモータを用いてバッフルにより開口部を開閉することができる。 In the present invention, the motor can adopt a configuration capable of outputting only the rotational driving force for driving the driving vehicle to one side. This makes it possible to open and close the opening with a baffle using an inexpensive motor.

本発明において、前記付勢部材は、前記バッフルを前記開口部に対する開方向あるいは閉方向に付勢することにより、前記バッフルを介して前記従動車を付勢する態様を採用することができる。このようにすると、付勢部材を回転伝達機構に組み込む必要がないので、回転伝達機構を小型化することができる。また、バッフルまわりの空きスペースを利用して付勢部材を設けることができる。 In the present invention, the urging member can adopt an embodiment in which the driven vehicle is urged through the baffle by urging the baffle in the opening direction or the closing direction with respect to the opening. By doing so, it is not necessary to incorporate the urging member into the rotation transmission mechanism, so that the rotation transmission mechanism can be miniaturized. Further, the urging member can be provided by utilizing the empty space around the baffle.

本発明において、前記複数の回転伝達部材を回転可能に支持する回転支持部が設けられたケースを備え、前記ブレーキ部材は、前記ケースと前記複数の回転伝達部材との間の少なくとも１箇所に配置されることが好ましい。このようにすると、ケースに回転伝達部材を組み付ける際にブレーキ部材を組み込むことができる。 In the present invention, the present invention includes a case provided with a rotation support portion that rotatably supports the plurality of rotation transmission members, and the brake member is arranged at at least one place between the case and the plurality of rotation transmission members. It is preferable to be done. In this way, the brake member can be incorporated when assembling the rotation transmission member to the case.

本発明によれば、駆動車と従動車は、複数の噛合い部を備えるとともに、駆動車は、噛合い部の従動車側の部位が摺動するカム面形成部を備える。従って、噛合い部が噛み合う回転位置では、駆動車から従動車に回転が伝達される。また、噛合いが外れた回転位置では、従動車側の噛合い部が駆動車のカム面形成部に摺動するので、従動車は、付勢部材の付勢力により、駆動車から回転が伝達される際とは逆方向に回転する。従って、一方側の回転のみを供給する駆動源を用いて、従動車を往復回転させることができる。また、このような駆動車および従動車は、従来、駆動車と従動車とが接触する部位が切り換わる際に、駆動車の回転に乱れが生じることがあったが、本発明では、従動車より動力伝達経路の上流側で駆動車を含む範囲に、回転負荷を発生させるブレーキ部材が配置されている。これにより、動力伝達経路の途中で回転の乱れが駆動源側に伝達されることを抑制できる。従って、駆動車の回転の乱れに起因するノイズを抑制できる。 According to the present invention, the drive vehicle and the driven vehicle are provided with a plurality of meshing portions, and the drive vehicle is provided with a cam surface forming portion on which a portion of the meshing portion on the driven vehicle side slides. Therefore, at the rotation position where the meshing portion meshes, the rotation is transmitted from the driving vehicle to the driven vehicle. Further, at the rotation position where the meshing is disengaged, the meshing portion on the driven vehicle side slides on the cam surface forming portion of the driving vehicle, so that the driven vehicle transmits the rotation from the driving vehicle by the urging force of the urging member. It rotates in the opposite direction to when it is done. Therefore, the driven vehicle can be reciprocated by using a drive source that supplies only one side of rotation. Further, in such a driving vehicle and a driven vehicle, conventionally, when the portion where the driving vehicle and the driven vehicle come into contact with each other is switched, the rotation of the driving vehicle may be disturbed. However, in the present invention, the driven vehicle may be disturbed. A brake member that generates a rotational load is arranged in a range including the driving vehicle on the upstream side of the power transmission path. As a result, it is possible to suppress the disturbance of rotation from being transmitted to the drive source side in the middle of the power transmission path. Therefore, it is possible to suppress noise caused by the disturbance of the rotation of the driving vehicle.

本発明を適用したダンパ装置の斜視図である。It is a perspective view of the damper device to which this invention is applied. フレームを省略したダンパ装置の分解斜視図である。It is an exploded perspective view of the damper device which omitted the frame. カバーおよびバッフル駆動機構の平面図である。It is a top view of a cover and a baffle drive mechanism. バッフル、回転伝達機構、および位置検出器の斜視図である。It is a perspective view of a baffle, a rotation transmission mechanism, and a position detector. 駆動車および従動車をカム面形成部の側から見た斜視図である。It is a perspective view which saw the driving vehicle and the driven vehicle from the side of the cam surface forming part. 駆動車および従動車を駆動歯および従動歯の側から見た斜視図である。It is a perspective view which saw the driving vehicle and the driven vehicle from the side of the driving tooth and the driven tooth. 駆動車および従動車の平面的な構成を示す説明図である。It is explanatory drawing which shows the planar structure of the driving vehicle and the driven vehicle. 駆動車の角度位置とバッフルの開度との関係を示す説明図である。It is explanatory drawing which shows the relationship between the angular position of a driving vehicle, and the opening degree of a baffle. ブレーキ部材の取付構造の説明図である。It is explanatory drawing of the mounting structure of a brake member. カバー、リード線、位置検出器、モータおよびウォームの平面図である。It is a top view of a cover, a lead wire, a position detector, a motor and a worm. ブレーキ部材の変形例の説明図である。It is explanatory drawing of the modification of the brake member.

以下、図面を参照して、本発明を適用した回転伝達機構および冷蔵庫用のダンパ装置について説明する。なお、本発明のダンパ装置は冷蔵庫用に限定されるものではなく、流体の取り入れ口を開閉して流量を調節する各種の装置に用いることができる。 Hereinafter, a rotation transmission mechanism to which the present invention is applied and a damper device for a refrigerator will be described with reference to the drawings. The damper device of the present invention is not limited to the refrigerator, and can be used for various devices for adjusting the flow rate by opening and closing the fluid intake port.

（全体構成）
図１は本発明を適用したダンパ装置１の斜視図であり、図２はフレーム２を省略したダンパ装置１の分解斜視図である。本明細書において、符号Ｌはバッフル４の回転中心軸線である。また、第１軸線Ｌ１はバッフル４を駆動するバッフル駆動機構５の駆動車６の回転中心軸線であり、第２軸線Ｌ２は従動車７の回転中心軸線である。また、回転中心軸線Ｌに沿う方向をＸ方向とし、回転中心軸線Ｌに対して交差する方向（冷気の流れる方向）をＺ方向とし、Ｘ方向およびＺ方向と交差する方向をＹ方向とする。また、Ｘ方向の一方側をＸ１とし、Ｘ方向の他方側をＸ２とし、Ｙ方向の一方側をＹ１とし、Ｙ方向の他方側をＹ２とし、Ｚ方向の一方側をＺ１とし、Ｚ方向の他方側をＺ２とする。 (overall structure)
FIG. 1 is a perspective view of the damper device 1 to which the present invention is applied, and FIG. 2 is an exploded perspective view of the damper device 1 in which the frame 2 is omitted. In the present specification, the reference numeral L is the rotation center axis of the baffle 4. Further, the first axis L1 is the rotation center axis of the drive vehicle 6 of the baffle drive mechanism 5 for driving the baffle 4, and the second axis L2 is the rotation center axis of the driven vehicle 7. Further, the direction along the rotation center axis L is the X direction, the direction intersecting the rotation center axis L (the direction in which cold air flows) is the Z direction, and the direction intersecting the X direction and the Z direction is the Y direction. Further, one side in the X direction is X1, the other side in the X direction is X2, one side in the Y direction is Y1, the other side in the Y direction is Y2, one side in the Z direction is Z1, and the other side in the Z direction is Z1. The other side is Z2.

図１および図２に示すように、ダンパ装置１は全体としてＸ方向に長い直方体状であり、矩形の開口部２０が形成されたフレーム２と、開口部２０を開閉するためのバッフル４と、バッフル４を駆動するバッフル駆動機構５を備える。フレーム２の長手方向（Ｘ方向）の一端側には、バッフル駆動機構５を収容するカバー３が取り付けられている。フレー
ム２およびカバー３は樹脂製である。フレーム２は、Ｚ方向の両側に開口する長方形断面の筒部２１を備えており、筒部２１の長手方向の一方側（Ｘ１方向）には、筒部２１の内側とバッフル駆動機構５が配置される空間とを仕切る隔壁２２が一体に形成されている。カバー３は、図示しないフック機構によってフレーム２に係合される。 As shown in FIGS. 1 and 2, the damper device 1 has a rectangular parallelepiped shape that is long in the X direction as a whole, and has a frame 2 in which a rectangular opening 20 is formed, a baffle 4 for opening and closing the opening 20, and a baffle 4. A baffle drive mechanism 5 for driving the baffle 4 is provided. A cover 3 for accommodating the baffle drive mechanism 5 is attached to one end side of the frame 2 in the longitudinal direction (X direction). The frame 2 and the cover 3 are made of resin. The frame 2 includes a tubular portion 21 having a rectangular cross section that opens on both sides in the Z direction, and the inside of the tubular portion 21 and the baffle drive mechanism 5 are arranged on one side (X1 direction) in the longitudinal direction of the tubular portion 21. The partition wall 22 that partitions the space is integrally formed. The cover 3 is engaged with the frame 2 by a hook mechanism (not shown).

筒部２１の内側には、Ｚ方向およびＹ方向に対して斜めに傾いた斜めに傾いた枠状のシール部２３が形成され、シール部２３の内側が開口部２０になっている。筒部２１の内側において、バッフル４は、Ｘ方向に延在する回転中心軸線Ｌ周りに回転可能にフレーム２に支持されている。図１に示す状態で、バッフル４は、シール部２３と当接し、開口部２０を塞いだ閉姿勢４Ａになっている。この状態から、バッフル駆動機構５がバッフル４を回転中心軸線Ｌ周りの一方側ＬＣＷに回転駆動してバッフル４をシール部２３から離間させると、バッフル４は、開口部２０を開放した開姿勢４Ｂとなる。 Inside the tubular portion 21, a frame-shaped seal portion 23 tilted diagonally with respect to the Z direction and the Y direction is formed, and the inside of the seal portion 23 is an opening portion 20. Inside the tubular portion 21, the baffle 4 is rotatably supported by the frame 2 around the rotation center axis L extending in the X direction. In the state shown in FIG. 1, the baffle 4 is in contact with the seal portion 23 and is in a closed posture 4A in which the opening 20 is closed. From this state, when the baffle drive mechanism 5 rotationally drives the baffle 4 to one side LCW around the rotation center axis L to separate the baffle 4 from the seal portion 23, the baffle 4 has an open posture 4B in which the opening 20 is opened. It becomes.

本形態において、バッフル４は、開口部２０よりサイズが大きな開閉板４１と、開閉板４１の開口部２０側の面に貼り付けられた発泡ポリウレタン等からなるシート状の弾性部材４２（図２参照）とを有しており、弾性部材４２が開口部２０の周り（シール部２３）に当接して開口部２０を塞ぐ。冷気は、開口部２０に対してバッフル４が配置されている側（Ｚ方向の一方側Ｚ１）とは反対側（Ｚ方向の他方側Ｚ２）から開口部２０を通ってＺ方向の一方側Ｚ１に流れる。あるいは、冷気は、開口部２０に対してバッフル４が配置されている側（Ｚ方向の一方側Ｚ１）から開口部２０を通ってＺ方向の他方側Ｚ２に流れる場合もある。 In the present embodiment, the baffle 4 is a sheet-shaped elastic member 42 made of an opening / closing plate 41 having a size larger than that of the opening 20 and polyurethane foam or the like attached to the surface of the opening / closing plate 41 on the opening 20 side (see FIG. 2). ), And the elastic member 42 abuts around the opening 20 (seal portion 23) to close the opening 20. Cold air passes through the opening 20 from the side opposite to the side where the baffle 4 is arranged (one side Z1 in the Z direction) (the other side Z2 in the Z direction) with respect to the opening 20, and the one side Z1 in the Z direction. Flow to. Alternatively, the cold air may flow from the side where the baffle 4 is arranged with respect to the opening 20 (one side Z1 in the Z direction) through the opening 20 to the other side Z2 in the Z direction.

（バッフル駆動機構）
図３はカバー３およびバッフル駆動機構５の平面図である。図２および図３に示すように、バッフル駆動機構５は、モータ５０と、モータ５０の回転をバッフル４に伝達するための回転伝達機構５５を備える。ダンパ装置１は、バッフル４を回転させるギアードモータ１Ａを備えており、ギアードモータ１Ａは、カバー３と隔壁２２との間にバッフル駆動機構５を収容し、リード線５９を接続して構成されている。すなわち、本形態において、フレーム２の隔壁２２とカバー３は、バッフル駆動機構５を収容するケースを構成する。回転伝達機構５５は、モータ５０の出力軸５１に形成されたウォーム５２と、ウォーム５２と噛み合うウォームホイール５６と、ウォームホイール５６に形成された小径歯車５６１と噛み合う大径歯車５７１を備えた複合歯車５７と、複合歯車５７の小径歯車５７２を介して、複合歯車５７の回転が伝達される下流側回転伝達機構１０とを有しており、下流側回転伝達機構１０からバッフル４に回転が伝達される。 (Baffle drive mechanism)
FIG. 3 is a plan view of the cover 3 and the baffle drive mechanism 5. As shown in FIGS. 2 and 3, the baffle drive mechanism 5 includes a motor 50 and a rotation transmission mechanism 55 for transmitting the rotation of the motor 50 to the baffle 4. The damper device 1 includes a geared motor 1A for rotating the baffle 4, and the geared motor 1A accommodates the baffle drive mechanism 5 between the cover 3 and the partition wall 22 and is configured by connecting a lead wire 59. There is. That is, in this embodiment, the partition wall 22 and the cover 3 of the frame 2 constitute a case for accommodating the baffle drive mechanism 5. The rotation transmission mechanism 55 is a composite gear including a worm 52 formed on the output shaft 51 of the motor 50, a worm wheel 56 that meshes with the worm 52, and a large diameter gear 571 that meshes with the small diameter gear 561 formed on the worm wheel 56. It has a downstream rotation transmission mechanism 10 in which the rotation of the composite gear 57 is transmitted via the small diameter gear 572 of the composite gear 57, and the rotation is transmitted from the downstream rotation transmission mechanism 10 to the baffle 4. To.

モータ５０としては各種モータを用いることができる。本形態においては、モータ５０としてＤＣモータが用いられているため、制御が容易である。モータ５０は、モータ軸線周りの一方方向の回転のみを出力する。本形態において、モータ５０は、バッフル４を回転中心軸線Ｌ周りの一方側ＬＣＷ（開方向）に回転させる方向のみに回転する。すなわち、モータ５０は、後述する駆動車６を第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに駆動させる回転駆動力のみを出力する。 Various motors can be used as the motor 50. In this embodiment, since the DC motor is used as the motor 50, it is easy to control. The motor 50 outputs only one-way rotation around the motor axis. In the present embodiment, the motor 50 rotates only in the direction in which the baffle 4 is rotated in the one-sided LCW (opening direction) around the rotation center axis L. That is, the motor 50 outputs only the rotational driving force for driving the drive vehicle 6 described later to one side L1CCW around the first axis L1.

図２、図３に示すように、下流側回転伝達機構１０は、バッフル４の回転中心軸線Ｌと平行にＸ方向に延在する第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転する駆動車６と、駆動車６によって第１軸線Ｌ１と平行な第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転駆動される従動車７と、従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに付勢する付勢部材である付勢部材８とを有する。また、下流側回転伝達機構１０は、駆動車６または従動車７（バッフル４）の角度位置を監視する位置検出器９を備える。 As shown in FIGS. 2 and 3, the downstream rotation transmission mechanism 10 is a drive vehicle 6 that rotates on one side L1CCW around the first axis L1 extending in the X direction in parallel with the rotation center axis L of the baffle 4. , The driven vehicle 7 that is rotationally driven by the driving vehicle 6 to one side L2CW around the second axis L2 parallel to the first axis L1, and the driven vehicle 7 is urged to urge the other side L2CCW around the second axis L2. It has an urging member 8 which is a member. Further, the downstream rotation transmission mechanism 10 includes a position detector 9 that monitors the angular position of the driving vehicle 6 or the driven vehicle 7 (baffle 4).

本形態において、従動車７は、バッフル４に連結される。従って、従動車７の回転中心
軸線（第２軸線Ｌ２）は、バッフル４の回転中心軸線Ｌと一致している。下流側回転伝達機構１０において、駆動車６が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転すると、従動車７が第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転し、バッフル４が回転中心軸線Ｌ周りの一方側ＬＣＷに回転するので、バッフル４は開姿勢４Ｂとなる。これに対して、駆動車６が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転しても、駆動車６による従動車７の回転駆動が停止すると、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する。従って、バッフル４は、回転中心軸線Ｌ周りの他方側ＬＣＣＷに回転し、閉姿勢４Ａとなり、それ以上の回転中心軸線Ｌ周りの他方側ＬＣＣＷの回転は、フレーム２に設けられたストッパ等によって阻止される。 In this embodiment, the driven vehicle 7 is connected to the baffle 4. Therefore, the rotation center axis (second axis L2) of the driven vehicle 7 coincides with the rotation center axis L of the baffle 4. In the downstream rotation transmission mechanism 10, when the driving vehicle 6 rotates to one side L1CCW around the first axis L1, the driven vehicle 7 rotates to one side L2CW around the second axis L2, and the baffle 4 rotates around the rotation center axis L. Since it rotates to one side LCW, the baffle 4 is in the open posture 4B. On the other hand, even if the driving vehicle 6 rotates to one side L1CCW around the first axis L1, when the rotational driving of the driven vehicle 7 by the driving vehicle 6 is stopped, the driven vehicle 7 has an urging force of the urging member 8. Rotates to the other side L2CCW around the second axis L2. Therefore, the baffle 4 rotates to the other side LCCW around the rotation center axis L and becomes a closed posture 4A, and further rotation of the other side LCCW around the rotation center axis L is blocked by a stopper or the like provided on the frame 2. Will be done.

図１、図２に示すように、付勢部材８は、バッフル４とフレーム２との間に配置される。付勢部材８はねじりコイルばねであり、コイル部８１と、コイル部８１の軸線方向の両端から異なる方向に延びた直線状の端部８２、８３を備える。付勢部材８は、一方の端部８２が筒部２１の内面に設けられた係合部（図示省略）に保持され、他方の端部８３がバッフル４の開閉板４１の背面側（弾性部材４２とは反対側）に設けられた係合部４３に保持されている。付勢部材８は、バッフル４を回転中心軸線Ｌ回りの他方側ＬＣＣＷ（閉方向）に付勢することによって、従動車７を第２軸線Ｌ２回りの他方側Ｌ２ＣＣＷに付勢している。 As shown in FIGS. 1 and 2, the urging member 8 is arranged between the baffle 4 and the frame 2. The urging member 8 is a torsion coil spring, and includes a coil portion 81 and linear ends 82, 83 extending in different directions from both ends of the coil portion 81 in the axial direction. In the urging member 8, one end 82 is held by an engaging portion (not shown) provided on the inner surface of the tubular portion 21, and the other end 83 is on the back surface side (elastic member) of the opening / closing plate 41 of the baffle 4. It is held by an engaging portion 43 provided on the side opposite to 42). The urging member 8 urges the driven vehicle 7 to the other side L2CCW around the second axis L2 by urging the baffle 4 to the other side LCCW (closed direction) around the rotation center axis L.

図４はバッフル４、下流側回転伝達機構１０、および位置検出器９の斜視図である。図２、図４に示すように、従動車７は、バッフル４を連結するための軸部７５を備える。軸部７５は、フレーム２の隔壁２２を貫通する貫通部を経由して筒部２１の内側に突出し、バッフル４と連結される。バッフル４の回転中心軸線Ｌ側の縁には、回転中心軸線Ｌ方向の両端に軸部４５、４６が形成されている。軸部７５は、一方側の軸部４５に形成された嵌合凹部４５１（図４参照）と嵌合する。他方側の軸部４６の先端には、円柱状の凸部４６１（図２参照）が形成されている。凸部４６１は、フレーム２の筒部２１に形成された保持孔（図示省略）に回転可能に保持される。 FIG. 4 is a perspective view of the baffle 4, the downstream rotation transmission mechanism 10, and the position detector 9. As shown in FIGS. 2 and 4, the driven vehicle 7 includes a shaft portion 75 for connecting the baffle 4. The shaft portion 75 projects inward of the tubular portion 21 via a penetrating portion penetrating the partition wall 22 of the frame 2, and is connected to the baffle 4. Shaft portions 45 and 46 are formed at both ends of the baffle 4 on the rotation center axis L side in the rotation center axis L direction. The shaft portion 75 fits into the fitting recess 451 (see FIG. 4) formed in the shaft portion 45 on one side. A columnar convex portion 461 (see FIG. 2) is formed at the tip of the shaft portion 46 on the other side. The convex portion 461 is rotatably held in a holding hole (not shown) formed in the tubular portion 21 of the frame 2.

（ブレーキ部材）
回転伝達機構５５は、モータ５０の動力をバッフル４に伝達する動力伝達経路を構成する複数の回転伝達部材として、ウォーム５２およびウォームホイール５６（１番歯車）と、複合歯車５７（２番歯車）と、駆動車６および従動車７を備える。また、回転伝達機構５５は、従動車７より動力伝達経路の上流側に設けられた回転伝達部材に回転負荷を発生させるブレーキ部材５３を備える。図２、図３に示すように、本形態では、ブレーキ部材５３はバネワッシャーであり、複合歯車５７とフレーム２の隔壁２２との間に配置されている。ブレーキ部材５３の詳細は後述する。 (Brake member)
The rotation transmission mechanism 55 includes a worm 52, a worm wheel 56 (first gear), and a composite gear 57 (second gear) as a plurality of rotation transmission members constituting a power transmission path for transmitting the power of the motor 50 to the baffle 4. And a driving vehicle 6 and a driven vehicle 7. Further, the rotation transmission mechanism 55 includes a brake member 53 that generates a rotation load on the rotation transmission member provided on the upstream side of the power transmission path from the driven vehicle 7. As shown in FIGS. 2 and 3, in this embodiment, the brake member 53 is a spring washer and is arranged between the composite gear 57 and the partition wall 22 of the frame 2. Details of the brake member 53 will be described later.

（駆動車および従動車）
図５は駆動車６および従動車７をカム面形成部６７０の側から見た斜視図であり、図６は駆動車６および従動車７を駆動歯６６および従動歯７６の側から見た斜視図である。また、図７は駆動車６および従動車７の平面的な構成を示す説明図であり、図７（ａ）はバッフル４が閉姿勢４Ａである状態を示し、図７（ｂ）はバッフル４が開姿勢４Ｂである状態を示す。 (Driving vehicle and driven vehicle)
FIG. 5 is a perspective view of the driving vehicle 6 and the driven vehicle 7 as viewed from the side of the cam surface forming portion 670, and FIG. 6 is a perspective view of the driving vehicle 6 and the driven vehicle 7 as viewed from the side of the driving teeth 66 and the driven teeth 76. It is a figure. 7A and 7B are explanatory views showing a planar configuration of the driving vehicle 6 and the driven vehicle 7, FIG. 7A shows a state in which the baffle 4 is in the closed posture 4A, and FIG. 7B shows the baffle 4 Indicates a state in which is an open posture 4B.

図５、図６に示すように、駆動車６は、外周面に歯車６１０が形成された円盤部６１と、円盤部６１の中央から第１軸線Ｌ１方向の一方側Ｌ１ａに突出した円柱状の第１胴部６２と、第１胴部６２の中央から第１軸線Ｌ１方向の一方側Ｌ１ａに突出した円柱状の第２胴部６３と、第２胴部６３の中央から第１軸線Ｌ１方向の一方側Ｌ１ａに突出した円柱状の軸部６４とを有する。また、駆動車６は、円盤部６１の中央から第１軸線Ｌ１方向の他方側Ｌ１ｂに突出した軸部６５（図２、図３参照）を備えており、かかる軸部６４、６５
がフレーム２の隔壁２２に回転可能に支持されている。図２、図３に示すように、駆動車６に形成された歯車６１０は、複合歯車５７の小径歯車５７２と噛み合っている。 As shown in FIGS. 5 and 6, the drive vehicle 6 has a disk portion 61 having a gear 610 formed on the outer peripheral surface thereof and a columnar column protruding from the center of the disk portion 61 to one side L1a in the direction of the first axis L1. The first body portion 62, the columnar second body portion 63 protruding from the center of the first body portion 62 to one side L1a in the first axis L1 direction, and the first axis line L1 direction from the center of the second body portion 63. It has a columnar shaft portion 64 protruding from one side L1a. Further, the drive vehicle 6 includes a shaft portion 65 (see FIGS. 2 and 3) protruding from the center of the disk portion 61 to the other side L1b in the direction of the first axis L1.
Is rotatably supported by the partition wall 22 of the frame 2. As shown in FIGS. 2 and 3, the gear 610 formed in the drive vehicle 6 meshes with the small diameter gear 572 of the compound gear 57.

駆動車６には、従動車７を第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転駆動する複数の駆動歯６６が周方向に配置された駆動歯形成部６６０と、従動車７が付勢部材８による付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する際に従動車７が摺動するカム面形成部６７０とが周方向で隣り合うように設けられている。 The drive vehicle 6 includes a drive tooth forming portion 660 in which a plurality of drive teeth 66 for rotationally driving the driven vehicle 7 on one side L2CW around the second axis L2 are arranged in the circumferential direction, and the driven vehicle 7 is an urging member 8. The cam surface forming portion 670 on which the driven vehicle 7 slides when rotating to the other side L2CCW around the second axis L2 is provided so as to be adjacent to each other in the circumferential direction.

これに対して、従動車７には、駆動車６が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転した際に駆動歯６６が順に当接する複数の従動歯７６が周方向に配置された従動歯形成部７６０が設けられている。本形態において、従動車７は扇形歯車であり、外周面によって、従動歯形成部７６０が構成されている。従動車７において、扇形の中心には、第２軸線Ｌ２方向の一方側Ｌ２ａに突出した軸部７４と、第２軸線Ｌ２方向の他方側Ｌ２ｂに突出した軸部７５とが形成されており、かかる軸部７４、７５がフレーム２の隔壁２２に回転可能に支持されている。 On the other hand, in the driven vehicle 7, a plurality of driven teeth 76 with which the driving teeth 66 are sequentially in contact when the driving vehicle 6 rotates to one side L1CCW around the first axis L1 are arranged in the circumferential direction. A forming portion 760 is provided. In the present embodiment, the driven vehicle 7 is a fan-shaped gear, and the driven tooth forming portion 760 is configured by the outer peripheral surface. In the driven vehicle 7, a shaft portion 74 protruding from one side L2a in the second axis L2 direction and a shaft portion 75 protruding from the other side L2b in the second axis L2 direction are formed at the center of the fan shape. The shaft portions 74 and 75 are rotatably supported by the partition wall 22 of the frame 2.

駆動車６では、複数の駆動歯６６が各々、第１軸線Ｌ１方向の異なる位置に配置されており、第１軸線Ｌ１方向に沿って多段に形成されている。かかる構成に対応して、複数の従動歯７６は各々、第２軸線Ｌ２方向の異なる位置に設けられており、第２軸線Ｌ２方向に沿って多段に形成されている。 In the drive vehicle 6, the plurality of drive teeth 66 are arranged at different positions in the first axis L1 direction, and are formed in multiple stages along the first axis L1 direction. Corresponding to such a configuration, the plurality of driven teeth 76 are each provided at different positions in the second axis L2 direction, and are formed in multiple stages along the second axis L2 direction.

下流側回転伝達機構１０は、駆動車６が第１軸線Ｌ１線周りの一方側Ｌ１ＣＣＷに回転すると、駆動歯６６が従動歯７６を介して従動車７を第２軸線Ｌ２周りの一方側Ｌ２ＣＷに駆動し、その後、駆動歯６６と従動歯７６との噛み合いが解除されると、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する。その際、従動車７は、駆動車６に設けられたカム面形成部６７０を摺動する。従って、駆動車６の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷのみに回転させた場合でも、従動車７を第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転駆動することができるとともに、従動車７を第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転させることができる。 In the downstream rotation transmission mechanism 10, when the drive vehicle 6 rotates to one side L1CCW around the first axis line L1, the drive teeth 66 make the driven vehicle 7 to one side L2CW around the second axis line L2 via the driven teeth 76. After driving, when the meshing between the driving tooth 66 and the driven tooth 76 is released, the driven vehicle 7 is rotated to the other side L2CCW around the second axis L2 by the urging force of the urging member 8. At that time, the driven vehicle 7 slides on the cam surface forming portion 670 provided on the driving vehicle 6. Therefore, even when the driven vehicle 6 is rotated only on one side L1CCW around the first axis L1, the driven vehicle 7 can be rotationally driven to one side L2CW around the second axis L2, and the driven vehicle 7 is driven to the first side. It can be rotated to the other side L2CCW around the two-axis line L2.

（駆動車）
図６に示すように、駆動車６には、計４つの駆動歯６６（第１駆動歯６６１、第２駆動歯６６２、第３駆動歯６６３、および第４駆動歯６６４）が第１軸線Ｌ１方向に沿って多段に形成されている。４つの駆動歯６６は各々、第１軸線Ｌ１方向の各位置に１つずつ形成されており、第１軸線Ｌ１方向からみたとき、４つの駆動歯６６は等角度間隔に形成されている（図７参照）。 (Drive vehicle)
As shown in FIG. 6, in the drive vehicle 6, a total of four drive teeth 66 (first drive tooth 661, second drive tooth 662, third drive tooth 663, and fourth drive tooth 664) are included in the first axis L1. It is formed in multiple stages along the direction. Each of the four drive teeth 66 is formed at each position in the direction of the first axis L1. When viewed from the direction of the first axis L1, the four drive teeth 66 are formed at equal intervals (FIG. 6). 7).

４つの駆動歯６６のうち、第１軸線Ｌ１方向の最も一方側Ｌ１ａに形成された第１駆動歯６６１は、第１軸線Ｌ１周りの最も他方側Ｌ１ＣＷに配置されており、第１駆動歯６６１に対して第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに沿って第２駆動歯６６２、第３駆動歯６６３、および第４駆動歯６６４が順に配置されている。従って、４つの駆動歯６６のうち、第１軸線Ｌ１方向の最も他方側Ｌ１ｂに形成された第４駆動歯６６４は、第１軸線Ｌ１周りの最も一方側Ｌ１ＣＣＷに位置する。つまり、本形態では、４つの駆動歯６６は、第１軸線Ｌ１方向の一方側Ｌ１ａに位置する駆動歯６６が第１軸線Ｌ１方向の他方側Ｌ１ｂに位置する駆動歯６６より第１軸線Ｌ１周りの他方側Ｌ１ＣＷに位置する。 Of the four drive teeth 66, the first drive tooth 661 formed on the most one side L1a in the direction of the first axis L1 is arranged on the most other side L1CW around the first axis L1 and is the first drive tooth 661. A second drive tooth 662, a third drive tooth 663, and a fourth drive tooth 664 are arranged in this order along one side L1CCW around the first axis L1. Therefore, of the four drive teeth 66, the fourth drive tooth 664 formed on the most opposite side L1b in the direction of the first axis L1 is located on the most one side L1CCW around the first axis L1. That is, in the present embodiment, in the four drive teeth 66, the drive tooth 66 located on one side L1a in the first axis L1 direction is around the first axis L1 from the drive tooth 66 located on the other side L1b in the first axis L1 direction. It is located on the other side of L1CW.

ここで、駆動車６は、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに回転した際のみ、駆動歯６６が従動車７を駆動する。このため、４つの駆動歯６６は、図７に示すように、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの面が、インボリュート曲線をもつ歯面になっており、４つの駆動歯６６の径方向外側の端部（歯先）から第１軸線Ｌ１周りの他方側Ｌ１ＣＷは、
４つの駆動歯６６の径方向外側の端部から連続して延在する円周面になっている（図６参照）。 Here, in the drive vehicle 6, the drive teeth 66 drive the driven vehicle 7 only when the drive vehicle 6 rotates to one side L1CCW around the first axis L1. Therefore, as shown in FIG. 7, in the four drive teeth 66, the surface of one side L1CCW around the first axis L1 is a tooth surface having an involute curve, and the four drive teeth 66 are radially outward. The other side L1CW around the first axis L1 from the end (tooth tip) of
It has a circumferential surface that extends continuously from the radial outer ends of the four drive teeth 66 (see FIG. 6).

本形態では、４つの駆動歯６６のうち、第２駆動歯６６２、第３駆動歯６６３、および第４駆動歯６６４の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの面は、単純なインボリュート曲線をもつ歯面になっている。これに対して、第１駆動歯６６１の第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷの面は、インボリュート曲線を基本にして径方向外側の端部の曲率半径を大きくしてある。このため、後述する動作を行った際、全開位置手前から全開位置への移行をスムーズに行うことができる。また、力の掛かる方向が急激に変化しないので、瞬間の衝撃音等を小さくすることができる。 In the present embodiment, of the four drive teeth 66, the surface of one side L1CCW around the first axis L1 of the second drive tooth 662, the third drive tooth 663, and the fourth drive tooth 664 has a simple involute curve. It is a tooth surface. On the other hand, the surface of the one-sided L1CCW around the first axis L1 of the first driving tooth 661 has an increased radius of curvature at the outer end in the radial direction based on the involute curve. Therefore, when the operation described later is performed, the transition from the front of the fully open position to the fully open position can be smoothly performed. Further, since the direction in which the force is applied does not change suddenly, it is possible to reduce the instantaneous impact sound and the like.

（従動車）
図６に示すように、従動車７には、計４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４）が第２軸線Ｌ２方向に沿って多段に形成されている。４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４）は各々、４つの駆動歯６６（第１駆動歯６６１、第２駆動歯６６２、第３駆動歯６６３、および第４駆動歯６６４）と対応する位置に形成されている。４つの従動歯７６は各々、第２軸線Ｌ２方向の各位置に１つずつ形成されており、第２軸線Ｌ２方向からみたとき、４つの従動歯７６は等角度間隔に形成されている（図７参照）。 (Vehicle)
As shown in FIG. 6, in the driven vehicle 7, a total of four driven teeth 76 (first driven tooth 761, second driven tooth 762, third driven tooth 763, and fourth driven tooth 764) are provided on the second axis L2. It is formed in multiple stages along the direction. Each of the four driven teeth 76 (first driven tooth 761, second driven tooth 762, third driven tooth 763, and fourth driven tooth 764) has four drive teeth 66 (first drive tooth 661, second drive tooth 661). It is formed at a position corresponding to 662, the third drive tooth 663, and the fourth drive tooth 664). Each of the four driven teeth 76 is formed at each position in the second axis L2 direction, and the four driven teeth 76 are formed at equal intervals when viewed from the second axis L2 direction (FIG. FIG. 7).

４つの従動歯７６のうち、第２軸線Ｌ２方向の最も一方側Ｌ２ａに形成された第１従動歯７６１は、第２軸線Ｌ２周りの最も他方側Ｌ２ＣＣＷに配置されており、第１従動歯７６１から第２軸線Ｌ２周りの一方側Ｌ２ＣＷに向かって第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４が順に配置されている。従って、４つの従動歯７６のうち、第２軸線Ｌ２方向の最も他方側Ｌ２ｂに形成された第４従動歯７６４は、第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷに位置する。それ故、複数の従動歯７６では、第２軸線Ｌ２方向の一方側Ｌ２ａに位置する従動歯７６が第２軸線Ｌ２方向の他方側Ｌ２ｂに位置する従動歯７６より第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに位置する。 Of the four driven teeth 76, the first driven tooth 761 formed on the most one side L2a in the second axis L2 direction is arranged on the most opposite side L2CCW around the second axis L2, and the first driven tooth 761. The second driven tooth 762, the third driven tooth 763, and the fourth driven tooth 764 are arranged in this order from the second axis toward the one side L2CW around the second axis L2. Therefore, of the four driven teeth 76, the fourth driven tooth 764 formed on the most opposite side L2b in the second axis L2 direction is located on the most one side L2CW around the second axis L2. Therefore, in the plurality of driven teeth 76, the driven tooth 76 located on one side L2a in the second axis L2 direction is located on the other side around the second axis L2 from the driven tooth 76 located on the other side L2b in the second axis L2 direction. It is located at L2CCW.

ここで、従動歯７６は、第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷからのみ駆動歯６６が当接する。このため、４つの従動歯７６は、第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷの面が、インボリュート曲線をもつ歯面になっており、４つの従動歯７６の径方向外側の端部（歯先）から第２軸線Ｌ２周りの一方側Ｌ２ＣＷは、４つの従動歯７６の径方向外側の端部から連続して延在する円周面になっている（図６参照）。 Here, the driven tooth 76 comes into contact with the driving tooth 66 only from the other side L2CCW around the second axis L2. Therefore, in the four driven teeth 76, the surface of the other side L2CCW around the second axis L2 is a tooth surface having an involute curve, and the radial outer ends (tooth tips) of the four driven teeth 76. The one-sided L2CW around the second axis L2 is a circumferential surface that extends continuously from the radial outer ends of the four driven teeth 76 (see FIG. 6).

また、従動車７の従動歯形成部７６０には、複数の従動歯７６より第２軸線Ｌ２周りの一方側Ｌ２ＣＷに、駆動車６が第１軸線Ｌ１線周りの一方側Ｌ１ＣＣＷに回転した際に駆動歯６６が当接しない最終従動歯７６５が複数の従動歯７６よりも第２軸線Ｌ２方向の他方側Ｌ２ｂに設けられている。 Further, when the driven tooth forming portion 760 of the driven vehicle 7 is rotated from the plurality of driven teeth 76 to one side L2CW around the second axis L2 and the drive vehicle 6 is rotated to one side L1CCW around the first axis L1 line. The final driven tooth 765 to which the driving tooth 66 does not abut is provided on the other side L2b in the second axis L2 direction with respect to the plurality of driven teeth 76.

ここで、４つの従動歯７６（第１従動歯７６１、第２従動歯７６２、第３従動歯７６３、および第４従動歯７６４）の各ピッチは等しい。これに対して、第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷに位置する第４従動歯７６４と最終従動歯７６５とのピッチは、４つの従動歯７６のピッチより広い。例えば、第４従動歯７６４と最終従動歯７６５とのピッチは、複数の従動歯７６のピッチの１．１倍から１．８倍であり、本形態では、第４従動歯７６４と最終従動歯７６５とのピッチは、複数の従動歯７６のピッチの１．２５倍である。 Here, the pitches of the four driven teeth 76 (first driven tooth 761, second driven tooth 762, third driven tooth 763, and fourth driven tooth 764) are equal. On the other hand, the pitch between the fourth driven tooth 764 and the final driven tooth 765 located on the most one side L2CW around the second axis L2 is wider than the pitch of the four driven teeth 76. For example, the pitch between the fourth driven tooth 764 and the final driven tooth 765 is 1.1 to 1.8 times the pitch of the plurality of driven teeth 76, and in this embodiment, the fourth driven tooth 764 and the final driven tooth 764 and the final driven tooth 76. The pitch with 765 is 1.25 times the pitch of the plurality of driven teeth 76.

（カム面形成部）
駆動車６には、駆動歯形成部６６０に対して第１軸線Ｌ１周りの他方側Ｌ１ＣＷに形成された円周面にカム面形成部６７０が構成されている。カム面形成部６７０には、従動車７が付勢部材８による付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転する際に複数の従動歯７６が順に摺動する複数のカム面６７が第１軸線Ｌ１方向の異なる位置に配置されており、複数のカム面６７は、第１軸線Ｌ１方向に沿って多段に形成されている。 (Cam surface forming part)
In the drive vehicle 6, a cam surface forming portion 670 is configured on a circumferential surface formed on the other side L1CW around the first axis L1 with respect to the driving tooth forming portion 660. The cam surface forming portion 670 has a plurality of cam surfaces 67 on which the plurality of driven teeth 76 slide in order when the driven vehicle 7 rotates to the other side L2CCW around the second axis L2 by the urging force of the urging member 8. The cam surfaces 67 are arranged at different positions in the first axis L1 direction, and the plurality of cam surfaces 67 are formed in multiple stages along the first axis L1 direction.

カム面形成部６７０には、４つの従動歯７６に対応して４つのカム面６７（第１カム面６７１、第２カム面６７２、第３カム面６７３および第４カム面６７４）が形成されている。また、カム面形成部６７０には、従動車７の最終従動歯７６５が当接する最終のカム面６７５が設けられている。従って、カム面形成部６７０には、計５つのカム面６７が形成されている。 Four cam surfaces 67 (first cam surface 671, second cam surface 672, third cam surface 673, and fourth cam surface 674) are formed on the cam surface forming portion 670 corresponding to the four driven teeth 76. ing. Further, the cam surface forming portion 670 is provided with a final cam surface 675 to which the final driven teeth 765 of the driven vehicle 7 abut. Therefore, a total of five cam surfaces 67 are formed on the cam surface forming portion 670.

５つのカム面６７のうち、第１軸線Ｌ１方向の最も一方側Ｌ１ａに形成された第１カム面６７１は、第１軸線Ｌ１周りの最も一方側Ｌ１ＣＣＷに配置されており、第１カム面６７１に対して第１軸線Ｌ１周りの他方側Ｌ１ＣＷに沿って第２カム面６７２、第３カム面６７３、第４カム面６７４、および最終のカム面６７５が順に配置されている。従って、５つのカム面６７のうち、第１軸線Ｌ１方向の最も他方側Ｌ１ｂに形成された最終のカム面６７５は、第１軸線Ｌ１周りの最も他方側Ｌ１ＣＷに位置する。それ故、複数のカム面６７では、第１軸線Ｌ１方向の一方側Ｌ１ａに位置するカム面６７が第１軸線Ｌ１方向の他方側Ｌ１ｂに位置するカム面６７より第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに位置している。 Of the five cam surfaces 67, the first cam surface 671 formed on the most one side L1a in the direction of the first axis L1 is arranged on the most one side L1CCW around the first axis L1 and is arranged on the first cam surface 671. A second cam surface 672, a third cam surface 673, a fourth cam surface 674, and a final cam surface 675 are arranged in this order along the other side L1CW around the first axis L1. Therefore, of the five cam surfaces 67, the final cam surface 675 formed on the outermost side L1b in the direction of the first axis L1 is located on the outermost side L1CW around the first axis L1. Therefore, in the plurality of cam surfaces 67, the cam surface 67 located on one side L1a in the first axis L1 direction is one side around the first axis L1 from the cam surface 67 located on the other side L1b in the first axis L1 direction. It is located at L1CCW.

５つのカム面６７はいずれも、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷから他方側Ｌ１ＣＷに円弧状に延在した円弧面からなり、周方向の一部に従動歯７６が摺動する。このため、５つのカム面６７はいずれも、周方向で隣り合うカム面同士は、一定の角度範囲で重なっている。本形態において、第１カム面６７１は、第１駆動歯６６１の径方向外側の端部から周方向に延在している。また、複数のカム面６７はいずれも、第１軸線Ｌ１周りの最も一方側Ｌ１ＣＣＷの端部が第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷで隣り合うカム面６７より径方向外側に位置する。 Each of the five cam surfaces 67 is an arc surface extending in an arc shape from one side L1CCW around the first axis L1 to the other side L1CW, and a part of the driven tooth 76 in the circumferential direction slides. Therefore, in all of the five cam surfaces 67, the cam surfaces adjacent to each other in the circumferential direction overlap each other within a certain angle range. In this embodiment, the first cam surface 671 extends circumferentially from the radially outer end of the first drive tooth 661. Further, in each of the plurality of cam surfaces 67, the end portion of the most one-side L1CCW around the first axis L1 is located radially outside the adjacent cam surfaces 67 on the one-side L1CCW around the first axis L1.

５つのカム面６７はいずれも、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷから他方側Ｌ１ＣＷに向けて縮径し、駆動歯６６の歯底から第１軸線Ｌ１周りの他方側Ｌ１ＣＷに連続して延在する第１胴部６２の外周面に到達している。また、最終のカム面６７５は、他のカム面６７（第１カム面６７１、第２カム面６７２、第３カム面６７３および第４カム面６７４）より、第１軸線Ｌ１周りの一方側Ｌ１ＣＣＷに位置する部分の外径の周方向での減少率が小さく、かつ、第１軸線Ｌ１周りの他方側Ｌ１ＣＷに位置する部分の外径の周方向での減少率が大きい。また、第２カム面６７２は、第１軸線Ｌ１周りの他方側Ｌ１ＣＷに設けられたカム面６７（第３カム面６７３、第４カム面６７４、および最終のカム面６７５）より第１軸線Ｌ１周りの最も一方側Ｌ１ＣＣＷの端部が径方向内側に位置する。従って、後述する動作を行う際、第２従動歯７６２より後段の第３従動歯７６３、第４従動歯７６４、および最終従動歯７６５は、第２カム面６７２から第１軸線Ｌ１方向の他方側Ｌ１ｂに延在している部分と干渉しない。 All of the five cam surfaces 67 are reduced in diameter from one side L1CCW around the first axis L1 toward the other side L1CW, and continuously extend from the tooth bottom of the drive tooth 66 to the other side L1CW around the first axis L1. It reaches the outer peripheral surface of the existing first body portion 62. Further, the final cam surface 675 is one side L1CCW around the first axis L1 from the other cam surfaces 67 (first cam surface 671, second cam surface 672, third cam surface 673 and fourth cam surface 674). The rate of decrease in the circumferential direction of the outer diameter of the portion located in is small, and the rate of decrease in the circumferential direction of the outer diameter of the portion located on the other side L1CW around the first axis L1 is large. Further, the second cam surface 672 is the first axis line L1 from the cam surface 67 (third cam surface 673, fourth cam surface 674, and final cam surface 675) provided on the other side L1CW around the first axis line L1. The end of the one-sided L1CCW around is located radially inward. Therefore, when performing the operation described later, the third driven tooth 763, the fourth driven tooth 764, and the final driven tooth 765 after the second driven tooth 762 are located on the other side of the second cam surface 672 in the direction of the first axis L1. It does not interfere with the part extending to L1b.

また、本形態では、複数の従動歯７６が複数のカム面６７に対して順に摺動する各区間の間には、現在の区間の従動歯７６がカム面に接しているうちに、次の区間の従動歯７６または最終従動歯７６５がカム面６７に対して接するように構成されている。 Further, in the present embodiment, between the sections in which the plurality of driven teeth 76 slide in order with respect to the plurality of cam surfaces 67, while the driven teeth 76 in the current section are in contact with the cam surface, the following The driven tooth 76 or the final driven tooth 765 of the section is configured to be in contact with the cam surface 67.

（位置検出器）
図４に示すように、本形態の下流側回転伝達機構１０には、駆動車６または従動車７（
バッフル４）の角度位置を監視する位置検出器９が設けられている。本形態において、位置検出器９は、駆動車６の角度位置を監視するように構成されている。また、位置検出器９は、押圧式のスイッチ機構である。 (Position detector)
As shown in FIG. 4, the downstream rotation transmission mechanism 10 of the present embodiment includes a driving vehicle 6 or a driven vehicle 7 (
A position detector 9 for monitoring the angular position of the baffle 4) is provided. In this embodiment, the position detector 9 is configured to monitor the angular position of the driving vehicle 6. Further, the position detector 9 is a pressing type switch mechanism.

位置検出器９は、駆動車６の第２胴部６３に設けられたセンサ用カム面６３０によって変位する回転レバー９１と、回転レバー９１の変位によって状態が切り換わるスイッチ９２とを有している。センサ用カム面６３０は、第１軸線Ｌ１の他方側Ｌ１ＣＷに沿って、小径部６３１、拡径部６３４、大径部６３２および縮径部６３５が設けられている。 The position detector 9 has a rotary lever 91 displaced by a sensor cam surface 630 provided on the second body portion 63 of the drive vehicle 6, and a switch 92 whose state is switched by the displacement of the rotary lever 91. .. The sensor cam surface 630 is provided with a small diameter portion 631, a diameter expansion portion 634, a large diameter portion 632, and a diameter reduction portion 635 along the other side L1CW of the first axis L1.

スイッチ９２は、例えば押圧式のスイッチであり、回転レバー９１の変位によってオンオフが行われる。なお、スイッチ９２は、押圧式のスイッチ以外の種類のスイッチであってもよい。例えば、回転レバー９１の変位などの変化量を電圧の変化で読み取るポテンショメータを用いるものであってもよい。回転レバー９１は、カバー３に形成された円筒状のレバー保持部によって回転可能に支持された軸部９１０と、軸部９１０から駆動車６のセンサ用カム面６３０に向けて突出した第１アーム部９１１と、軸部９１０からスイッチ９２に向けて突出した第２アーム部９１２とを有している。第１アーム部９１１の先端には、センサ用カム面６３０に摺動する円形の第１当接部９１３が設けられ、第２アーム部９１２の先端には、スイッチ９２に当接する第２当接部９１４が設けられている。 The switch 92 is, for example, a pressing type switch, and is turned on and off by the displacement of the rotary lever 91. The switch 92 may be a type of switch other than the pressing type switch. For example, a potentiometer that reads the amount of change such as the displacement of the rotary lever 91 by the change in voltage may be used. The rotary lever 91 has a shaft portion 910 rotatably supported by a cylindrical lever holding portion formed on the cover 3, and a first arm protruding from the shaft portion 910 toward the sensor cam surface 630 of the drive vehicle 6. It has a portion 911 and a second arm portion 912 protruding from the shaft portion 910 toward the switch 92. A circular first contact portion 913 that slides on the sensor cam surface 630 is provided at the tip of the first arm portion 911, and a second contact portion that contacts the switch 92 is provided at the tip of the second arm portion 912. A section 914 is provided.

回転レバー９１に対しては、カバー３によって支持された付勢部材であるねじりコイルばね９３が設けられている。ねじりコイルばね９３の一方の端部９３１はカバー３に形成されたばね支持壁９７（図１０参照）に支持され、ねじりコイルばね９３の他方の端部９３２は、回転レバー９１の第２アーム部９１２の先端に設けられた第２当接部９１４に支持されている。従って、第２アーム部９１２は、ねじりコイルばね９３によってスイッチ９２に向けて付勢されている。それ故、第１アーム部９１１の先端に設けられた第１当接部９１３がセンサ用カム面６３０の小径部６３１に当接している区間では、第２アーム部９１２の第２当接部９１４がスイッチ９２を押圧する一方、第１アーム部９１１の先端に設けられた第１当接部９１３がセンサ用カム面６３０の大径部６３２に当接している区間では、第２アーム部９１２の第２当接部９１４がスイッチ９２から離間する。従って、スイッチ９２のオンオフを監視すれば、駆動車６の角度位置を検出することができ、それ故、従動車７およびバッフル４の角度位置を監視することができる。 A torsion coil spring 93, which is an urging member supported by the cover 3, is provided on the rotary lever 91. One end 931 of the torsion coil spring 93 is supported by a spring support wall 97 (see FIG. 10) formed on the cover 3, and the other end 932 of the torsion coil spring 93 is a second arm portion 912 of the rotary lever 91. It is supported by a second contact portion 914 provided at the tip of the. Therefore, the second arm portion 912 is urged toward the switch 92 by the torsion coil spring 93. Therefore, in the section where the first contact portion 913 provided at the tip of the first arm portion 911 is in contact with the small diameter portion 631 of the sensor cam surface 630, the second contact portion 914 of the second arm portion 912. Presses the switch 92, while in the section where the first contact portion 913 provided at the tip of the first arm portion 911 is in contact with the large diameter portion 632 of the sensor cam surface 630, the second arm portion 912 The second contact portion 914 is separated from the switch 92. Therefore, by monitoring the on / off of the switch 92, the angular position of the driving vehicle 6 can be detected, and therefore the angular position of the driven vehicle 7 and the baffle 4 can be monitored.

位置検出器９は、図８を参照して後述するように、従動車７が第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷに回転した後、そこで停止している第１区間の途中位置でスイッチ９２からの出力が切り換わるとともに、従動車７が第２軸線Ｌ２周りの最も他方側Ｌ２ＣＣＷに回転した後、そこで停止している第２区間の途中位置でスイッチ９２からの出力が切り換わる。従動車７が停止している区間の途中位置でスイッチ９２からの出力が切り換わるように構成したことにより、部品の寸法誤差等によって駆動車６の回転位置が多少ずれたとしても、従動車７（バッフル４）の正確な角度位置を検出することができる。従って、バッフル駆動機構５の動作不良を抑制することができる。 As will be described later with reference to FIG. 8, the position detector 9 is switched at a position in the middle of the first section in which the driven vehicle 7 is rotated to the most one side L2CW around the second axis L2 and then stopped there. The output from the switch 92 is switched, and after the driven vehicle 7 is rotated to the most opposite side L2CCW around the second axis L2, the output from the switch 92 is switched at an intermediate position of the second section stopped there. Since the output from the switch 92 is switched at the middle position of the section where the driven vehicle 7 is stopped, even if the rotational position of the driven vehicle 6 is slightly deviated due to a dimensional error of parts or the like, the driven vehicle 7 is used. The accurate angular position of (baffle 4) can be detected. Therefore, it is possible to suppress the malfunction of the baffle drive mechanism 5.

（回転伝達機構の動作）
図８は、駆動車６の角度位置とバッフル４の開度との関係を示す説明図である。図８には、バッフル４の開度を実線で示し、位置検出器９のスイッチ９２からの出力の変化を一点鎖線で示してある。以下、図７、図８を参照して、下流側回転伝達機構１０の動作を説明する。図７（ａ）に示すように、バッフル４が閉姿勢４Ａにある状態では、従動車７が第２軸線Ｌ２周りの最も他方側Ｌ２ＣＣＷに回転した後、停止している状態にある。この状態で、バッフル４は、付勢部材８によって閉方向（ＬＣＣＷ）に付勢されているが、バッフル４等に対して設けられたストッパによって、これ以上、バッフル４が閉方向（ＬＣＣＷ）に回転しないようになっている。 (Operation of rotation transmission mechanism)
FIG. 8 is an explanatory diagram showing the relationship between the angular position of the drive vehicle 6 and the opening degree of the baffle 4. In FIG. 8, the opening degree of the baffle 4 is shown by a solid line, and the change in the output of the position detector 9 from the switch 92 is shown by a alternate long and short dash line. Hereinafter, the operation of the downstream rotation transmission mechanism 10 will be described with reference to FIGS. 7 and 8. As shown in FIG. 7A, in the state where the baffle 4 is in the closed posture 4A, the driven vehicle 7 is in a stopped state after rotating to the most opposite side L2CCW around the second axis L2. In this state, the baffle 4 is urged in the closing direction (LCCW) by the urging member 8, but the baffle 4 is further moved in the closing direction (LCCW) by the stopper provided for the baffle 4 and the like. It is designed not to rotate.

図７（ａ）の状態から、モータ５０が作動すると、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷに回転する。駆動車６の第４駆動歯６６４が従動車７の第４従動歯７６４に当接するまでの区間（図８に示す区間ａ）では、従動車７およびバッフル４は停止した状態にある。また、位置検出器９は、回転レバー９１の第１当接部９１３がセンサ用カム面６３０の大径部６３２に当接している区間では、スイッチ９２からの出力がオフとなっている。 When the motor 50 is operated from the state of FIG. 7A, the drive vehicle 6 rotates around the first axis L1 to one side L1CCW. In the section until the fourth drive tooth 664 of the drive vehicle 6 comes into contact with the fourth driven tooth 764 of the driven vehicle 7 (section a shown in FIG. 8), the driven vehicle 7 and the baffle 4 are in a stopped state. Further, in the position detector 9, the output from the switch 92 is turned off in the section where the first contact portion 913 of the rotary lever 91 is in contact with the large diameter portion 632 of the sensor cam surface 630.

駆動車６の第４駆動歯６６４が従動車７の第４従動歯７６４に当接すると、従動車７は、付勢部材８の付勢力に抗して、第２軸線Ｌ２周りの一方側Ｌ２ＣＷに回転し始める。これにより、バッフル４が回転中心軸線Ｌ周りの一方側ＬＣＷ（開方向）に回転し始める。駆動車６がさらに回転すると、従動車７もさらに回転し、第３駆動歯６６３が従動車７の第３従動歯７６３に当接し、続いて、第２駆動歯６６２が従動車７の第２従動歯７６２に当接し、さらに、第１駆動歯６６１が従動車７の第１従動歯７６１に当接し、その後、第１駆動歯６６１の歯先が従動車７の第１従動歯７６１の歯先に乗り上げるまで回転する。これにより、バッフル４が開姿勢４Ｂとなる。 When the fourth drive tooth 664 of the drive vehicle 6 abuts on the fourth driven tooth 764 of the driven vehicle 7, the driven vehicle 7 opposes the urging force of the urging member 8 and causes one side L2CW around the second axis L2. Starts to rotate. As a result, the baffle 4 starts to rotate in the one-sided LCW (opening direction) around the rotation center axis L. When the driving vehicle 6 further rotates, the driven vehicle 7 also rotates further, the third driving tooth 663 abuts on the third driven tooth 763 of the driven vehicle 7, and subsequently, the second driving tooth 662 is the second of the driven vehicle 7. The first driving tooth 661 abuts on the driven tooth 762, the first driving tooth 661 abuts on the first driven tooth 761 of the driven vehicle 7, and then the tip of the first driving tooth 661 is the tooth of the first driven tooth 761 of the driven vehicle 7. Rotate until you get on first. As a result, the baffle 4 becomes the open posture 4B.

次に、駆動車６がさらに第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷに回転すると、駆動車６の第１駆動歯６６１と従動車７の第１従動歯７６１との係合が解除されるので、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転しようとする。但し、第１従動歯７６１が第１カム面６７１に当接しているため、従動車７が第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転することが阻止され、第２軸線Ｌ２周りの最も一方側Ｌ２ＣＷで停止した状態が維持される（図８に示す区間ｂ）。従って、バッフル４も開姿勢４Ｂのまま停止しており、第１従動歯７６１は、第１カム面６７１を摺動する。 Next, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the engagement between the first driving tooth 661 of the driving vehicle 6 and the first driven tooth 761 of the driven vehicle 7 is released. The driven vehicle 7 tries to rotate to the other side L2CCW around the second axis L2 by the urging force of the urging member 8. However, since the first driven tooth 761 is in contact with the first cam surface 671, the driven vehicle 7 is prevented from rotating to the other side L2CCW around the second axis L2, and the most one side around the second axis L2. The state of being stopped at L2CW is maintained (section b shown in FIG. 8). Therefore, the baffle 4 is also stopped in the open posture 4B, and the first driven tooth 761 slides on the first cam surface 671.

図７（ｂ）は、第１従動歯７６１が第１カム面６７１を摺動する途中の状態を示す。第１従動歯７６１が、第１カム面６７１の第１軸線Ｌ１周りの他方側Ｌ１ＣＷの部分で第１カム面６７１が縮径している部分に到達するまでは、従動車７およびバッフル４は、開姿勢４Ｂのまま停止している。そして、停止区間（図８に示す区間ｂ）の途中で、位置検出器９では、回転レバー９１の第１当接部９１３がセンサ用カム面６３０の大径部６３２から縮径部６３５を通って小径部６３１に移動する。従って、スイッチ９２からの出力がオフからオンに切り換わる。図７（ｂ）は、回転レバー９１の第１当接部９１３がセンサ用カム面６３０の小径部６３１へ移動する途中の状態を示している。 FIG. 7B shows a state in which the first driven tooth 761 is sliding on the first cam surface 671. Until the first driven tooth 761 reaches the portion of the first cam surface 671 on the other side L1CW around the first axis L1 where the diameter of the first cam surface 671 is reduced, the driven vehicle 7 and the baffle 4 remain. , It is stopped with the open posture 4B. Then, in the middle of the stop section (section b shown in FIG. 8), in the position detector 9, the first contact portion 913 of the rotary lever 91 passes from the large diameter portion 632 of the sensor cam surface 630 to the reduced diameter portion 635. And move to the small diameter portion 631. Therefore, the output from the switch 92 is switched from off to on. FIG. 7B shows a state in which the first contact portion 913 of the rotary lever 91 is in the process of moving to the small diameter portion 631 of the sensor cam surface 630.

第１従動歯７６１が、第１カム面６７１の第１軸線Ｌ１周りの他方側Ｌ１ＣＷの部分で第１カム面６７１が縮径している部分に到達すると、従動車７は、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し始める。従って、バッフル４は、回転中心軸線Ｌ周りの他方側ＬＣＣＷ（閉方向）に回転し始める。 When the first driven tooth 761 reaches the portion of the first cam surface 671 on the other side L1CW around the first axis L1 where the diameter of the first cam surface 671 is reduced, the driven vehicle 7 is subjected to the urging member 8 Starts to rotate to the other side L2CCW around the second axis L2 due to the urging force of. Therefore, the baffle 4 starts to rotate in the other side LCCW (closed direction) around the rotation center axis L.

駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、第１従動歯７６１が第１カム面６７１に接触した状態で、第２従動歯７６２が第２カム面６７２に接触する。そして、第２従動歯７６２が第２カム面６７２を摺動する。続いて、第１従動歯７６１が第１カム面６７１から離れ、第２従動歯７６２が第２カム面６７２に接触した状態で、第３従動歯７６３が第３カム面６７３に接触し、第３従動歯７６３が第３カム面６７３を摺動する。そして、第２従動歯７６２が第２カム面６７２から離れ、第３従動歯７６３が第３カム面６７３に接触した状態で、第４従動歯７６４が第４カム面６７４に接触し、第４従動歯７６４が第４カム面６７４を摺動する。さらに、第３従動歯７６３が第３カム面６７３から離れ、第４従動歯７６４が第４カム面６７４に接触した状態で、最終従動歯７６５が最終のカム面６７５に接触し、最終従動歯７６５が最終のカム面６７５を摺動する。 When the drive vehicle 6 further rotates around the first axis L1 to one side L1CCW, the second driven tooth 762 comes into contact with the second cam surface 672 while the first driven tooth 761 is in contact with the first cam surface 671. Then, the second driven tooth 762 slides on the second cam surface 672. Subsequently, the third driven tooth 763 comes into contact with the third cam surface 673 while the first driven tooth 761 is separated from the first cam surface 671 and the second driven tooth 762 is in contact with the second cam surface 672. 3 The driven tooth 763 slides on the third cam surface 673. Then, in a state where the second driven tooth 762 is separated from the second cam surface 672 and the third driven tooth 763 is in contact with the third cam surface 673, the fourth driven tooth 764 is in contact with the fourth cam surface 674, and the fourth The driven tooth 764 slides on the fourth cam surface 674. Further, with the third driven tooth 763 separated from the third cam surface 673 and the fourth driven tooth 764 in contact with the fourth cam surface 674, the final driven tooth 765 contacts the final cam surface 675, and the final driven tooth comes into contact with the final cam surface 675. 765 slides on the final cam surface 675.

従動車７は、最終従動歯７６５が最終のカム面６７５を外れるまで、付勢部材８の付勢力によって第２軸線Ｌ２周りの他方側Ｌ２ＣＣＷに回転し、その後、停止する。従って、バッフル４は閉姿勢４Ａの状態で停止する。その間、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転しても、第４駆動歯６６４が第４従動歯７６４に当接するまでは、従動車７およびバッフル４は停止している（図８に示す区間ａ）。そして、停止区間の途中で、位置検出器９に用いた回転レバー９１の第１当接部９１３がセンサ用カム面６３０の小径部６３１から拡径部６３４を通って大径部６３２に移動する。従って、スイッチ９２からの出力は、オンからオフに切り換わる。 The driven vehicle 7 is rotated to the other side L2CCW around the second axis L2 by the urging force of the urging member 8 until the final driven tooth 765 deviates from the final cam surface 675, and then stops. Therefore, the baffle 4 stops in the closed posture 4A. Meanwhile, even if the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the driven vehicle 7 and the baffle 4 are stopped until the fourth driving tooth 664 comes into contact with the fourth driven tooth 764. (Section a shown in FIG. 8). Then, in the middle of the stop section, the first contact portion 913 of the rotary lever 91 used for the position detector 9 moves from the small diameter portion 631 of the sensor cam surface 630 to the large diameter portion 632 through the diameter expansion portion 634. .. Therefore, the output from the switch 92 switches from on to off.

以降、駆動車６が第１軸線Ｌ１周りに一方側Ｌ１ＣＣＷにさらに回転すると、上記の動作が繰り返し行われる。 After that, when the driving vehicle 6 further rotates around the first axis L1 to one side L1CCW, the above operation is repeated.

（ブレーキ部材によるノイズ抑制）
本形態の駆動車６は、従動車７を付勢する付勢部材８の付勢力に抗して回るため、駆動車６のカム面６７に接触する従動歯７６が切り換わる際、駆動車６は、瞬間的に逆回転しようとする。本形態では、駆動車６の回転の乱れがモータ５０の動力を伝達する動力伝達経路の最も上流側に配置されたウォーム５２に伝達されてノイズを発生させることを抑制するため、ブレーキ部材５３によって動力伝達経路の途中に回転負荷を加える。ブレーキ部材５３を配置すべき範囲は、駆動車６からウォームホイール５６（１番歯車）までの範囲であるが、本形態では、複合歯車５７（２番歯車）に対して回転負荷を加えている。すなわち、本形態では、複合歯車５７が被負荷部材である。 (Noise suppression by brake member)
Since the drive vehicle 6 of the present embodiment rotates against the urging force of the urging member 8 that urges the driven vehicle 7, when the driven teeth 76 in contact with the cam surface 67 of the driving vehicle 6 are switched, the driving vehicle 6 Momentarily tries to reverse rotation. In this embodiment, the brake member 53 suppresses the disturbance of the rotation of the drive vehicle 6 from being transmitted to the worm 52 arranged on the most upstream side of the power transmission path for transmitting the power of the motor 50 to generate noise. A rotational load is applied in the middle of the power transmission path. The range in which the brake member 53 should be arranged is the range from the drive vehicle 6 to the worm wheel 56 (first gear), but in this embodiment, a rotational load is applied to the composite gear 57 (second gear). .. That is, in this embodiment, the composite gear 57 is a loaded member.

図９は、ブレーキ部材５３の取付構造の説明図であり、図３のＡ－Ａ位置の部分断面図である。回転伝達機構５５はフレーム２とカバー３との間に組み立てられており、フレーム２の隔壁２２と対向するカバー３の底部３１には、回転伝達機構５５を支持する複数の回転支持部が設けられている。すなわち、カバー３の底部３１には、ウォームホイール５６を支持する第１回転支持部５８１と、複合歯車５７を支持する第２回転支持部５８２と、駆動車６を支持する第３回転支持部５８３と、従動車７を支持する第４回転支持部５８４が設けられている（図１０参照）。また、カバー３の底部３１と対向する隔壁２２（ケース）には、これら４箇所の回転支持部と対向する軸穴などの回転支持部が設けられている。 FIG. 9 is an explanatory view of the mounting structure of the brake member 53, and is a partial cross-sectional view taken along the line AA of FIG. The rotation transmission mechanism 55 is assembled between the frame 2 and the cover 3, and a plurality of rotation support portions for supporting the rotation transmission mechanism 55 are provided on the bottom portion 31 of the cover 3 facing the partition wall 22 of the frame 2. ing. That is, on the bottom portion 31 of the cover 3, a first rotation support portion 581 that supports the worm wheel 56, a second rotation support portion 582 that supports the composite gear 57, and a third rotation support portion 583 that supports the drive vehicle 6 are provided. And a fourth rotation support portion 584 that supports the driven vehicle 7 is provided (see FIG. 10). Further, the partition wall 22 (case) facing the bottom portion 31 of the cover 3 is provided with rotation support portions such as shaft holes facing these four rotation support portions.

図９に示すように、複合歯車５７は、第１軸線Ｌ１および第２軸線Ｌ２と平行な第３軸線Ｌ３（回転軸線）を中心として回転可能に支持される。複合歯車５７には、第３軸線Ｌ３方向の一方側Ｌ３ａ（カバー３側）の端面の中央に軸穴５７３が形成され、第３軸線Ｌ３方向の他方側Ｌ３ｂ（隔壁２２側）の端面の中央に凸部５７４が形成されている。軸穴５７３には、第２回転支持部５８２の先端中央から突出する軸部５８５が挿入され、凸部５７４は、フレーム２の隔壁２２に形成された軸穴２２１（回転支持部）に挿入されている。これにより、複合歯車５７は、第３軸線Ｌ３回りに回転可能に支持される。 As shown in FIG. 9, the composite gear 57 is rotatably supported around a third axis L3 (rotational axis) parallel to the first axis L1 and the second axis L2. In the composite gear 57, a shaft hole 573 is formed in the center of the end face of one side L3a (cover 3 side) in the third axis L3 direction, and the center of the end face of the other side L3b (bulkhead 22 side) in the third axis L3 direction. A convex portion 574 is formed on the surface. A shaft portion 585 protruding from the center of the tip of the second rotation support portion 582 is inserted into the shaft hole 573, and the convex portion 574 is inserted into the shaft hole 221 (rotation support portion) formed in the partition wall 22 of the frame 2. ing. As a result, the composite gear 57 is rotatably supported around the third axis L3.

ブレーキ部材５３はバネワッシャーであり、第３軸線Ｌ３方向に弾性変形可能である。図３に示すように、本形態のバネワッシャーは、金属板を曲げ加工して製造されており、環状の金属板の径方向の一方側および他方側を同じ方向に曲げた形状である。ブレーキ部材５３は、複合歯車５７の第３軸線Ｌ３方向の他方側Ｌ３ｂの端面と、フレーム２の隔壁２２との間に圧縮状態で配置されている。従って、複合歯車５７が回転する際、ブレーキ部材５３が隔壁２２および複合歯車５７と摺接するので、複合歯車５７に回転負荷が加わる。また、ブレーキ部材５３の付勢力により、複合歯車５７は、第３軸線Ｌ３方向の一方側Ｌ３ａの端面が第２回転支持部５８２の端面と第３軸線Ｌ３方向で当接するように位置決めされる。 The brake member 53 is a spring washer and can be elastically deformed in the direction of the third axis L3. As shown in FIG. 3, the spring washer of the present embodiment is manufactured by bending a metal plate, and has a shape in which one side and the other side in the radial direction of the annular metal plate are bent in the same direction. The brake member 53 is arranged in a compressed state between the end surface of the other side L3b of the composite gear 57 in the direction of the third axis L3 and the partition wall 22 of the frame 2. Therefore, when the composite gear 57 rotates, the brake member 53 is in sliding contact with the partition wall 22 and the composite gear 57, so that a rotational load is applied to the composite gear 57. Further, the compound gear 57 is positioned so that the end surface of one side L3a in the third axis L3 direction abuts on the end surface of the second rotation support portion 582 in the third axis L3 direction due to the urging force of the brake member 53.

（リード線の配線）
本形態では、フレーム２とカバー３（ケース）との間にバッフル駆動機構５を組み立てる際、まず、図２、図３に示すようにカバー３の内側へバッフル駆動機構５を組み付け、しかる後にフレーム２とカバー３を係合させて固定する。カバー３は、矩形の底部３１と、底部３１のＹ方向の一方側Ｙ１の縁から立ち上がる第１壁３２および他方側Ｙ２の縁から立ち上がる第２壁３３と、底部３１のＺ方向の一方側Ｚ１の縁から立ち上がる第３壁３４および他方側Ｚ２の縁から立ち上がる第４壁３５を備える。 (Lead wire wiring)
In this embodiment, when assembling the baffle drive mechanism 5 between the frame 2 and the cover 3 (case), first, the baffle drive mechanism 5 is assembled inside the cover 3 as shown in FIGS. 2 and 3, and then the frame. 2 and the cover 3 are engaged and fixed. The cover 3 has a rectangular bottom portion 31, a first wall 32 rising from the edge of one side Y1 in the Y direction of the bottom portion 31, a second wall 33 rising from the edge of the other side Y2, and one side Z1 in the Z direction of the bottom portion 31. It is provided with a third wall 34 rising from the edge of the other side and a fourth wall 35 rising from the edge of the other side Z2.

図１に示すように、フレーム２とカバー３の間には、カバー３の内側からリード線５９を引き出すための配線出口３６が形成されている。リード線５９は、配線出口３６において、カバー３とフレーム２との間に保持される。配線出口３６は、カバー３の第２壁３３をＸ方向の一方側Ｘ１に切り欠いた切り欠き３７と、フレーム２から切り欠き３７に向けて突出し切り欠き３７の開口部に嵌合する凸部２４の先端との間に形成される。配線出口３６には３本のリード線５９が通され、そのうちの１本は、モータ５０に接続される。他の２本は、位置検出器９に接続される。 As shown in FIG. 1, a wiring outlet 36 for drawing out a lead wire 59 from the inside of the cover 3 is formed between the frame 2 and the cover 3. The lead wire 59 is held between the cover 3 and the frame 2 at the wiring outlet 36. The wiring outlet 36 is a notch 37 in which the second wall 33 of the cover 3 is cut out on one side X1 in the X direction, and a convex portion that protrudes from the frame 2 toward the notch 37 and fits into the opening of the notch 37. It is formed between the tip and the tip of 24. Three lead wires 59 are passed through the wiring outlet 36, and one of them is connected to the motor 50. The other two are connected to the position detector 9.

図１０は、カバー３、リード線５９、位置検出器９、モータ５０およびウォーム５２の平面図である。モータ５０は、カバー３の長手方向（Ｙ方向）とモータ軸線方向とを一致させるように配置され、カバー３の第２壁３３と第３壁３４とが交差する角部に配置されている。カバー３の底部３１には、モータ５０を囲むように仕切り壁３８が形成されている。仕切り壁３８と、カバー３の第１壁３２および第４壁３５との間の空間は、回転伝達機構５５および位置検出器９を配置する空間となっている。仕切り壁３８と第１壁３２との間には、モータ５０の出力軸５１に取り付けられたウォーム５２が突出している。リード線５９が接続されるモータ端子５０１は、ウォーム５２とはモータ軸線方向の反対側で、カバー３の第２壁３３と対向するモータ後端面５０２に設けられている。 FIG. 10 is a plan view of the cover 3, the lead wire 59, the position detector 9, the motor 50, and the worm 52. The motor 50 is arranged so that the longitudinal direction (Y direction) of the cover 3 and the motor axis direction coincide with each other, and is arranged at a corner where the second wall 33 and the third wall 34 of the cover 3 intersect. A partition wall 38 is formed on the bottom portion 31 of the cover 3 so as to surround the motor 50. The space between the partition wall 38 and the first wall 32 and the fourth wall 35 of the cover 3 is a space for arranging the rotation transmission mechanism 55 and the position detector 9. A worm 52 attached to the output shaft 51 of the motor 50 projects between the partition wall 38 and the first wall 32. The motor terminal 501 to which the lead wire 59 is connected is provided on the rear end surface 502 of the motor facing the second wall 33 of the cover 3 on the opposite side of the worm 52 in the motor axis direction.

位置検出器９は、第１壁３２と第４壁３５とが繋がる角部に配置されている。位置検出器９は、押圧式のスイッチ９２を備えるスイッチ機構であり、このスイッチ９２は、カバー３に保持されたスイッチ基板９４に搭載されている。カバー３の第１壁３２と第４壁３５とが繋がる角部には、スイッチ基板９４を保持するための保持溝を備えた基板保持部９５が形成されている。スイッチ基板９４は、スイッチ９２が固定された面がカバー３の対角方向を向くように配置されている。スイッチ基板９４には、配線出口３６を通るリード線５９が２本接続されている。また、スイッチ基板９４からモータ５０へ１本のリード線５９が引き回されている。 The position detector 9 is arranged at a corner where the first wall 32 and the fourth wall 35 are connected. The position detector 9 is a switch mechanism including a press-type switch 92, and the switch 92 is mounted on a switch board 94 held by a cover 3. A board holding portion 95 having a holding groove for holding the switch board 94 is formed at a corner portion connecting the first wall 32 and the fourth wall 35 of the cover 3. The switch board 94 is arranged so that the surface to which the switch 92 is fixed faces the diagonal direction of the cover 3. Two lead wires 59 passing through the wiring outlet 36 are connected to the switch board 94. Further, one lead wire 59 is routed from the switch board 94 to the motor 50.

カバー３の底部３１には、回転伝達機構５５を構成する歯車を支持する回転支持部が４箇所に形成されている。まず、仕切り壁３８と第１壁３２との間にウォームホイール５６を支持する第１回転支持部５８１が配置されており、第１回転支持部５８１と位置検出器９との間に複合歯車５７を支持する第２回転支持部５８２が配置されている。また、駆動車６を支持する第３回転支持部５８３、および、従動車７を支持する第４回転支持部５８４は、第２回転支持部５８２と第２壁３３との間にこの順で配置されている。 The bottom portion 31 of the cover 3 is formed with four rotation support portions for supporting the gears constituting the rotation transmission mechanism 55. First, a first rotation support portion 581 that supports the worm wheel 56 is arranged between the partition wall 38 and the first wall 32, and a composite gear 57 is arranged between the first rotation support portion 581 and the position detector 9. A second rotation support portion 582 for supporting the above is arranged. Further, the third rotation support portion 583 that supports the drive vehicle 6 and the fourth rotation support portion 584 that supports the driven vehicle 7 are arranged in this order between the second rotation support portion 582 and the second wall 33. Has been done.

図１０に示すように、３本のリード線５９は、第２壁３３に形成された配線出口３６から第４回転支持部５８４と第４壁３５との隙間に通されている。この中の１本は、第４回転支持部５８４の外周に巻かれており、仕切り壁３８と第２壁３３との隙間Ｓ２へ引き回され、隙間Ｓ２からモータ後端面５０２へ引き回されてモータ端子５０１に接続される。仕切り壁３８は第２壁３３と繋がっていないので、仕切り壁３８の端部と第２壁３３との間に隙間Ｓ２ができており、この隙間Ｓ２がリード線５９の保持部となっている。リード線５９は、仕切り壁３８と第２壁３３との隙間Ｓ２を通る際、仕切り壁３８によってモー
タ後端面５０２の外周縁との接触角度が規制されている。従って、モータ後端面５０２の外周縁のエッジによってリード線５９が断線するおそれが少ない。 As shown in FIG. 10, the three lead wires 59 are passed from the wiring outlet 36 formed on the second wall 33 to the gap between the fourth rotation support portion 584 and the fourth wall 35. One of them is wound around the outer periphery of the fourth rotation support portion 584, is drawn to the gap S2 between the partition wall 38 and the second wall 33, and is drawn from the gap S2 to the rear end surface 502 of the motor. It is connected to the motor terminal 501. Since the partition wall 38 is not connected to the second wall 33, a gap S2 is formed between the end of the partition wall 38 and the second wall 33, and this gap S2 serves as a holding portion for the lead wire 59. .. When the lead wire 59 passes through the gap S2 between the partition wall 38 and the second wall 33, the contact angle with the outer peripheral edge of the rear end surface 502 of the motor is regulated by the partition wall 38. Therefore, there is little possibility that the lead wire 59 will be broken by the edge of the outer peripheral edge of the rear end surface 502 of the motor.

配線出口３６から第４回転支持部５８４と第４壁３５との隙間に通された３本のリード線５９のうち、他の２本のリード線５９は、第３回転支持部５８３と位置検出器９の回転レバー９１との間を通り、位置検出器９のスイッチ基板９４に接続されている。スイッチ基板９４とモータ５０とを接続するリード線５９は、スイッチ基板９４から第１壁３２に沿って引き回され、第１壁３２と第１回転支持部５８１の間に保持されて、仕切り壁３８と第３壁３４との隙間Ｓ１へ引き回されている。そして、第３壁３４に沿ってモータ後端面５０２へ引き回され、モータ端子５０１に接続されている。 Of the three lead wires 59 passed through the gap between the fourth rotation support portion 584 and the fourth wall 35 from the wiring outlet 36, the other two lead wires 59 are positioned with the third rotation support portion 583. It passes between the rotary lever 91 of the device 9 and is connected to the switch board 94 of the position detector 9. The lead wire 59 connecting the switch board 94 and the motor 50 is routed from the switch board 94 along the first wall 32 and held between the first wall 32 and the first rotation support portion 581 to form a partition wall. It is routed to the gap S1 between 38 and the third wall 34. Then, it is routed to the rear end surface 502 of the motor along the third wall 34 and connected to the motor terminal 501.

図１０に示すように、モータ５０は、スイッチ基板９４とモータ５０とを接続するリード線５９の第３壁３４に沿って引き回される部分に被さるように取り付けられている。つまり、本形態では、モータ５０とカバー３の底部３１との間に、モータ５０の出力軸５１側からモータ後端面５０２側へ引き回されるリード線５９の配線スペースが設けられている。従って、出力軸５１側からモータ後端面５０２へリード線５９を引き回す際に、リード線５９をモータ５０の上に通さなくてよい。このため、バッフル駆動機構５を組み付けたカバー３にフレーム２を固定する際、カバー３とフレーム２との間にリード線５９を噛み込んでリード線５９が潰されるおそれが少ない。 As shown in FIG. 10, the motor 50 is attached so as to cover a portion routed along a third wall 34 of a lead wire 59 connecting the switch board 94 and the motor 50. That is, in this embodiment, a wiring space for the lead wire 59 routed from the output shaft 51 side of the motor 50 to the rear end surface 502 side of the motor is provided between the motor 50 and the bottom portion 31 of the cover 3. Therefore, when the lead wire 59 is routed from the output shaft 51 side to the rear end surface 502 of the motor, the lead wire 59 does not have to pass over the motor 50. Therefore, when the frame 2 is fixed to the cover 3 to which the baffle drive mechanism 5 is assembled, there is little possibility that the lead wire 59 is caught between the cover 3 and the frame 2 and the lead wire 59 is crushed.

（本形態の主な効果）
以上のように、本形態のダンパ装置１は、駆動源であるモータ５０からの動力（回転）をバッフル４に伝達する回転伝達機構５５を備えており、回転伝達機構５５は、動力伝達経路の下流側の部分を構成する駆動車６と従動車７が、複数の噛合い部（駆動歯６６と従動歯７６）を備えるとともに、駆動車６は、従動歯７６（噛合い部の従動車７側の部位）が摺動するカム面６７を備える。従って、噛合い部（駆動歯６６と従動歯７６）が噛み合う回転位置では、駆動車６から従動車７に回転が伝達される。また、噛合いが外れた回転位置では、従動歯７６がカム面６７に摺動するので、従動車７は、付勢部材８の付勢力により、モータ５０の動力による回転方向とは逆方向に回転する。従って、一方向の回転のみを供給するモータ５０を用いて、従動車７を往復回転させることができる。また、このような駆動車６および従動車７は、従来、駆動車６と従動車７とが接触する部位が切り換わる際に、駆動車６の回転に乱れが生じることがあったが、本形態では、従動車７より動力伝達経路の上流側で駆動車６を含む範囲に、回転負荷を発生させるブレーキ部材５３が配置されている。従って、動力伝達経路の途中で回転の乱れがモータ５０側に伝達されることを抑制できるため、駆動車６の回転の乱れに起因するノイズを抑制できる。 (Main effect of this form)
As described above, the damper device 1 of the present embodiment includes a rotation transmission mechanism 55 that transmits power (rotation) from the motor 50, which is a drive source, to the baffle 4, and the rotation transmission mechanism 55 is a power transmission path. The drive vehicle 6 and the driven vehicle 7 constituting the downstream portion are provided with a plurality of meshing portions (driving teeth 66 and driven teeth 76), and the driving vehicle 6 is provided with the driven teeth 76 (driven vehicle 7 of the meshing portion). A cam surface 67 on which the side portion) slides is provided. Therefore, at the rotation position where the meshing portion (driving tooth 66 and driven tooth 76) meshes, the rotation is transmitted from the driving vehicle 6 to the driven vehicle 7. Further, in the rotational position where the meshing is disengaged, the driven tooth 76 slides on the cam surface 67, so that the driven vehicle 7 is in the direction opposite to the rotation direction driven by the power of the motor 50 due to the urging force of the urging member 8. Rotate. Therefore, the driven vehicle 7 can be reciprocated by using the motor 50 that supplies only one-way rotation. Further, in such a driving vehicle 6 and a driven vehicle 7, conventionally, when the portion where the driving vehicle 6 and the driven vehicle 7 come into contact with each other is switched, the rotation of the driving vehicle 6 may be disturbed. In the embodiment, the brake member 53 that generates a rotational load is arranged in a range including the driving vehicle 6 on the upstream side of the power transmission path from the driven vehicle 7. Therefore, since it is possible to suppress the transmission of rotational disturbance to the motor 50 side in the middle of the power transmission path, it is possible to suppress noise caused by the rotational disturbance of the driving vehicle 6.

本形態では、駆動源はモータであり、回転伝達機構５５はモータ５０の出力軸５１に連結されたウォーム５２を含むため、ブレーキ部材５３は、ウォーム５２より動力伝達経路の下流側に設けられている。これにより、ウォーム５２に回転の乱れが伝達されることを抑制できるため、ウォーム５２が軸方向にぶれて軸方向の両側の部品と衝突することによるノイズ（ウォーム５２の叩き音）を抑制できる。 In this embodiment, the drive source is a motor, and the rotation transmission mechanism 55 includes a worm 52 connected to the output shaft 51 of the motor 50. Therefore, the brake member 53 is provided on the downstream side of the power transmission path from the worm 52. There is. As a result, it is possible to suppress the transmission of rotational turbulence to the worm 52, and thus it is possible to suppress noise (striking sound of the worm 52) caused by the worm 52 shaking in the axial direction and colliding with parts on both sides in the axial direction.

本形態では、駆動車６に対して動力伝達経路の上流側に位置する回転伝達部材である複合歯車５７（２番歯車）にブレーキ部材５３であるバネワッシャーを取り付けて回転負荷を加えている。駆動車６でなくその上流側の歯車に回転負荷を加える場合には、駆動車６に回転負荷を加える場合よりも、必要な回転負荷が小さい。従って、ブレーキ部材５３を小型化することができる。 In this embodiment, a spring washer, which is a brake member 53, is attached to a composite gear 57 (second gear), which is a rotation transmission member located upstream of the power transmission path, to apply a rotational load to the drive vehicle 6. When the rotational load is applied to the gear on the upstream side of the drive vehicle 6 instead of the drive vehicle 6, the required rotational load is smaller than when the rotational load is applied to the drive vehicle 6. Therefore, the brake member 53 can be miniaturized.

本形態では、ブレーキ部材５３として、弾性部材であるバネワッシャーを用いている。弾性部材を用いることにより、複合歯車５７とブレーキ部材５３とを容易に接触させて回
転負荷を加えることができる。従って、ノイズを抑制できる。また、ブレーキ部材５３は、複合歯車５７（被負荷部材）の回転軸線方向である第３軸線Ｌ３方向の他方側Ｌ３ｂの端面に接触するので、複合歯車５７の回転軸線方向のガタつきを解消できる。また、カバー３にバッフル駆動機構５を組み付ける際に、複合歯車５７と共にブレーキ部材５３（バネワッシャー）を組み付けることができ、その後にフレーム２を被せるだけで、ブレーキ部材５３をダンパ装置１に組み込むことができる。従って、ブレーキ部材５３を簡単に組み込むことができる。更に、複合歯車５７とフレーム２とが対向する箇所にブレーキ部材５３を配置するので、回転伝達機構５５の平面配置を変更する必要がない。従って、ブレーキ部材５３を追加するための設計変更を少なくすることができる。 In this embodiment, a spring washer, which is an elastic member, is used as the brake member 53. By using the elastic member, the composite gear 57 and the brake member 53 can be easily brought into contact with each other to apply a rotational load. Therefore, noise can be suppressed. Further, since the brake member 53 comes into contact with the end surface of the other side L3b in the third axis L3 direction, which is the rotation axis direction of the composite gear 57 (loaded member), rattling in the rotation axis direction of the composite gear 57 can be eliminated. .. Further, when assembling the baffle drive mechanism 5 to the cover 3, the brake member 53 (spring washer) can be attached together with the composite gear 57, and then the brake member 53 can be incorporated into the damper device 1 simply by covering the frame 2. Can be done. Therefore, the brake member 53 can be easily incorporated. Further, since the brake member 53 is arranged at a position where the composite gear 57 and the frame 2 face each other, it is not necessary to change the plane arrangement of the rotation transmission mechanism 55. Therefore, it is possible to reduce the number of design changes for adding the brake member 53.

本形態では、駆動車６には、駆動車６の外周面において階段状に配置される複数の駆動歯６６が設けられ、従動車７には、駆動車６の回転に伴って複数の駆動歯６６と順に噛み合う複数の従動歯７６が従動車７の外周面に階段状に設けられている。従って、駆動歯６６と従動歯７６とを順次噛み合わせて従動車７を駆動し、その後、駆動歯６６と従動歯７６との噛み合いが外れると、従動車７を逆方向に回転させることができる。従って、一方側の回転のみを供給するモータを用いて、従動車７を往復回転させることができる。また、従動車７は、噛合い部である従動歯７６が形成されている部分が駆動車６に対して往復回転すればよいので、扇型に形成することで無駄な部分を省略できる。従って、従動車７を小型化し、省スペース化を図ることができる。 In the present embodiment, the drive vehicle 6 is provided with a plurality of drive teeth 66 arranged in a staircase pattern on the outer peripheral surface of the drive vehicle 6, and the driven vehicle 7 has a plurality of drive teeth as the drive vehicle 6 rotates. A plurality of driven teeth 76 that mesh with 66 in order are provided on the outer peripheral surface of the driven vehicle 7 in a stepped manner. Therefore, when the driving tooth 66 and the driven tooth 76 are sequentially meshed with each other to drive the driven vehicle 7, and then the driving tooth 66 and the driven tooth 76 are disengaged, the driven vehicle 7 can be rotated in the opposite direction. .. Therefore, the driven vehicle 7 can be reciprocated by using a motor that supplies only one side of rotation. Further, in the driven vehicle 7, since the portion where the driven tooth 76, which is the meshing portion, is formed, needs to reciprocate with respect to the driving vehicle 6, the unnecessary portion can be omitted by forming the driven vehicle 7 in a fan shape. Therefore, the driven vehicle 7 can be miniaturized to save space.

本形態では、複数の従動歯７６が順に摺動する複数のカム面６７を備え、複数のカム面６７は、周方向の一方側から他方側に向かって外径が縮小しており、且つ、周方向で隣り合うカム面６７は、カム面６７の外径の周方向での減少率が異なる。従って、従動車７の回転速度を変化させることができ、例えば、最初はゆっくり従動車７を回転させ、次第に回転速度を上げることができる。また、このような速度変化を付けた場合でも、従動車７の回転速度が変化する際の駆動車６の回転の乱れに起因するノイズを抑制できる。 In this embodiment, a plurality of cam surfaces 67 on which the plurality of driven teeth 76 slide in order are provided, and the outer diameters of the plurality of cam surfaces 67 are reduced from one side in the circumferential direction to the other side, and the outer diameter of the plurality of cam surfaces 67 is reduced. The cam surfaces 67 adjacent to each other in the circumferential direction have different reduction rates in the circumferential direction of the outer diameter of the cam surface 67. Therefore, the rotation speed of the driven vehicle 7 can be changed, for example, the driven vehicle 7 can be slowly rotated at first, and the rotation speed can be gradually increased. Further, even when such a speed change is added, noise caused by the disturbance of the rotation of the driving vehicle 6 when the rotation speed of the driven vehicle 7 changes can be suppressed.

（変形例）
（１）上記形態と異なる態様のブレーキ部材５３を用いることもできる。図１１はブレーキ部材の変形例の説明図である。図１１の形態において、変形例のブレーキ部材５３ＡはＯリングである。ブレーキ部材５３Ａは、複合歯車５７の第３軸線Ｌ３方向の一方側Ｌ３ａの端面と、第２回転支持部５８２の端面との間に取り付けられている。なお、Ｏリングを隔壁２２と複合歯車５７との間に配置してもよい。また、バネワッシャーを複合歯車５７と第２回転支持部５８２の端面との間に配置してもよい。 (Modification example)
(1) A brake member 53 having a mode different from the above-described embodiment can also be used. FIG. 11 is an explanatory diagram of a modified example of the brake member. In the form of FIG. 11, the brake member 53A of the modified example is an O-ring. The brake member 53A is attached between the end surface of one side L3a of the composite gear 57 in the direction of the third axis L3 and the end surface of the second rotation support portion 582. The O-ring may be arranged between the partition wall 22 and the composite gear 57. Further, the spring washer may be arranged between the composite gear 57 and the end surface of the second rotation support portion 582.

（２）ブレーキ部材５３として、図３に示した形態と異なるバネワッシャーを用いることもできる。例えば、図３に示したバネワッシャーは、環状の金属板の径方向の一方側および他方側の２箇所を同じ側へ撓ませた形状であったが、環状の金属板の外周縁を全周でテーパ状に傾けた形状のバネワッシャーを用いることもできる。また、環状の部材の周方向の１箇所が切断され、切断箇所の両側の端部を軸線方向でずらすように変形させたねじり形状のバネワッシャーを用いることもできる。また、バネワッシャーの材質は金属以外でもよい。例えば、樹脂製でもよい。 (2) As the brake member 53, a spring washer different from the form shown in FIG. 3 can also be used. For example, the spring washer shown in FIG. 3 has a shape in which two points on one side and the other side in the radial direction of the annular metal plate are bent to the same side, but the entire circumference of the outer peripheral edge of the annular metal plate is formed. It is also possible to use a spring washer having a tapered shape. Further, it is also possible to use a torsion-shaped spring washer in which one portion of the annular member in the circumferential direction is cut and the ends on both sides of the cut portion are deformed so as to be displaced in the axial direction. Further, the material of the spring washer may be other than metal. For example, it may be made of resin.

（３）ブレーキ部材によって回転負荷を加える歯車は、駆動車６、もしくはウォームホイール５６でも良い。ウォームホイール５６に回転負荷を加える場合には、ウォーム５２に最も近い歯車に回転負荷を加えるので、必要な回転負荷が最も小さい。従って、ブレーキ部材５３を小型化することができる。なお、回転伝達機構５５の複数個所にブレーキ部材を配置して、複数個所に回転負荷を加えることもできる。 (3) The gear that applies a rotational load by the brake member may be a drive vehicle 6 or a worm wheel 56. When applying a rotational load to the worm wheel 56, the rotational load is applied to the gear closest to the worm 52, so that the required rotational load is the smallest. Therefore, the brake member 53 can be miniaturized. It is also possible to arrange brake members at a plurality of locations of the rotation transmission mechanism 55 and apply a rotational load to the plurality of locations.

１…ダンパ装置、１Ａ…ギアードモータ、２…フレーム、３…カバー（ケース）、４…バッフル、４Ａ…閉姿勢、４Ｂ…開姿勢、５…バッフル駆動機構、６…駆動車、７…従動車、８…付勢部材、９…位置検出器、１０…下流側回転伝達機構、２０…開口部、２１…筒部、２２…隔壁（ケース）、２３…シール部、２４…凸部、３１…底部、３２…第１壁、３３…第２壁、３４…第３壁、３５…第４壁、３６…配線出口、３７…切り欠き、３８…仕切り壁、４１…開閉板、４２…弾性部材、４３…係合部、４５、４６…軸部、５０…モータ、５１…出力軸、５２…ウォーム、５３、５３Ａブレーキ部材、５５…回転伝達機構、５６…ウォームホイール（１番歯車）、５７…複合歯車（２番歯車、被負荷部材）、５９…リード線、６１…円盤部、６２…第１胴部、６３…第２胴部、６４、６５…軸部、６６…駆動歯（噛合い部）、６７…カム面、７４、７５…軸部、７６…従動歯（噛合い部）、８１…コイル部、８２…一方側の端部、８３…他方側の端部、９１…回転レバー、９２…スイッチ、９３…ねじりコイルばね、９４…スイッチ基板、９５…基板保持部、９７…ばね支持壁、２２１…軸穴（回転支持部）、４５１…嵌合凹部、４６１…凸部、５０１…モータ端子、５０２…モータ後端面、５６１…小径歯車、５７１…大径歯車、５７２…小径歯車、５７３…軸穴、５７４…凸部、５８１…第１回転支持部、５８２…第２回転支持部、５８３…第３回転支持部、５８４…第４回転支持部、５８５…軸部、６１０…歯車、６３０…センサ用カム面、６３１…小径部、６３２…大径部、６３４…拡径部、６３５…縮径部、６６０…駆動歯形成部、６６１…第１駆動歯、６６２…第２駆動歯、６６３…第３駆動歯、６６４…第４駆動歯、６７０…カム面形成部、６７１…第１カム面、６７２…第２カム面、６７３…第３カム面、６７４…第４カム面、６７５…第５カム面、７６０…従動歯形成部、７６１…第１従動歯、７６２…第２従動歯、７６３…第３従動歯、７６４…第４従動歯、７６５…最終従動歯、９１０…軸部、９１１…第１アーム部、９１２…第２アーム部、９１３…第１当接部、９１４…第２当接部、９３１…一方側の端部、９３２…他方側の端部、Ｌ…回転中心軸線、Ｌ１…第１軸線、Ｌ１ａ…一方側、Ｌ１ｂ…他方側、Ｌ２…第２軸線、Ｌ２ａ…一方側、Ｌ２ｂ…他方側、Ｌ３…第３軸線、Ｌ３ａ…一方側、Ｌ３ｂ…他方側、Ｓ１、Ｓ２…隙間 1 ... damper device, 1A ... geared motor, 2 ... frame, 3 ... cover (case), 4 ... baffle, 4A ... closed posture, 4B ... open posture, 5 ... baffle drive mechanism, 6 ... drive vehicle, 7 ... driven vehicle , 8 ... urging member, 9 ... position detector, 10 ... downstream rotation transmission mechanism, 20 ... opening, 21 ... cylinder, 22 ... partition (case), 23 ... seal, 24 ... convex, 31 ... Bottom, 32 ... 1st wall, 33 ... 2nd wall, 34 ... 3rd wall, 35 ... 4th wall, 36 ... wiring outlet, 37 ... notch, 38 ... partition wall, 41 ... opening / closing plate, 42 ... elastic member , 43 ... engaging part, 45, 46 ... shaft part, 50 ... motor, 51 ... output shaft, 52 ... worm, 53, 53A brake member, 55 ... rotation transmission mechanism, 56 ... worm wheel (first gear), 57 ... Composite gear (second gear, loaded member), 59 ... Lead wire, 61 ... Disc, 62 ... 1st body, 63 ... 2nd body, 64, 65 ... Shaft, 66 ... Drive teeth (meshing) Part), 67 ... cam surface, 74, 75 ... shaft part, 76 ... driven tooth (meshing part), 81 ... coil part, 82 ... one end, 83 ... other end, 91 ... rotation Lever, 92 ... Switch, 93 ... Twisting coil spring, 94 ... Switch board, 95 ... Board holding part, 97 ... Spring support wall, 221 ... Shaft hole (rotary support part), 451 ... Fitting concave part, 461 ... Convex part, 501 ... Motor terminal, 502 ... Motor rear end face, 561 ... Small diameter gear, 571 ... Large diameter gear, 572 ... Small diameter gear, 573 ... Shaft hole, 574 ... Convex part, 581 ... First rotation support part, 582 ... Second rotation Support part, 583 ... 3rd rotation support part, 584 ... 4th rotation support part, 585 ... shaft part, 610 ... gear, 630 ... sensor cam surface, 631 ... small diameter part, 632 ... large diameter part, 634 ... diameter expansion Unit, 635 ... reduced diameter part, 660 ... drive tooth forming part, 661 ... first driving tooth, 662 ... second driving tooth, 663 ... third driving tooth, 664 ... fourth driving tooth, 670 ... cam surface forming part, 671 ... 1st cam surface, 672 ... 2nd cam surface, 673 ... 3rd cam surface, 674 ... 4th cam surface, 675 ... 5th cam surface, 760 ... driven tooth forming portion, 761 ... 1st driven tooth, 762 ... 2nd driven tooth, 763 ... 3rd driven tooth, 764 ... 4th driven tooth, 765 ... final driven tooth, 910 ... shaft part, 911 ... 1st arm part, 912 ... 2nd arm part, 913 ... 1st gear Contact part, 914 ... Second contact part, 931 ... One side end, 932 ... Other side end, L ... Rotation center axis, L1 ... First axis, L1a ... One side, L1b ... Other side, L2 ... second axis, L2a ... one side, L2b ... the other side, L3 ... third axis, L3a ... one side , L3b ... the other side, S1, S2 ... gap

Claims (15)

駆動源からの動力を伝達する回転伝達機構であって、
駆動車および従動車を含む複数の回転伝達部材と、前記従動車を前記駆動源の動力による回転方向と逆方向に付勢する付勢部材と、回転負荷を発生させるブレーキ部材と、を有し、
前記駆動車と前記従動車は、前記駆動車の回転を前記従動車に伝達する噛合い部を備え、
前記駆動車は、前記噛合い部が噛み合わない回転位置で前記噛合い部の前記従動車側の部位が摺動するカム面形成部を備え、
前記ブレーキ部材は、前記駆動源の動力を伝達する動力伝達経路において、前記従動車より前記動力伝達経路の上流側に配置される前記回転伝達部材に回転負荷を加えることを特徴とする回転伝達機構。 It is a rotation transmission mechanism that transmits power from the drive source.
It has a plurality of rotation transmission members including a driving vehicle and a driven vehicle, an urging member that urges the driven vehicle in a direction opposite to the rotation direction by the power of the drive source, and a brake member that generates a rotational load. ,
The drive vehicle and the driven vehicle are provided with a meshing portion that transmits the rotation of the driven vehicle to the driven vehicle.
The drive vehicle includes a cam surface forming portion on which a portion of the meshing portion on the driven vehicle side slides at a rotation position where the meshing portion does not mesh.
The brake member is a rotation transmission mechanism characterized by applying a rotational load to the rotation transmission member arranged on the upstream side of the power transmission path from the driven vehicle in the power transmission path for transmitting the power of the drive source. .. 前記駆動源はモータであり、
前記複数の回転伝達部材は、前記モータの出力軸に連結されたウォームを含み、
前記ブレーキ部材は、前記ウォームより前記動力伝達経路の下流側に設けられていることを特徴とする請求項１に記載の回転伝達機構。 The drive source is a motor.
The plurality of rotation transmission members include a worm connected to the output shaft of the motor.
The rotation transmission mechanism according to claim 1, wherein the brake member is provided on the downstream side of the power transmission path from the worm. 前記複数の回転伝達部材は、前記ウォームと噛合う１番歯車、および、前記動力伝達経路において前記１番歯車と前記駆動車との間に配置される２番歯車を備え、
前記ブレーキ部材は、前記２番歯車に回転負荷を加えることを特徴とする請求項２に記載の回転伝達機構。 The plurality of rotation transmission members include a first gear that meshes with the worm, and a second gear that is arranged between the first gear and the drive vehicle in the power transmission path.
The rotation transmission mechanism according to claim 2, wherein the brake member applies a rotational load to the second gear. 前記ブレーキ部材は弾性部材であることを特徴とする請求項１から３の何れか一項に記載の回転伝達機構。 The rotation transmission mechanism according to any one of claims 1 to 3, wherein the brake member is an elastic member. 前記ブレーキ部材は、前記複数の回転伝達部材のうち、回転負荷が加えられる被負荷部材の回転軸線方向の一方側もしくは他方側の端面に接触することを特徴とする請求項４に記載の回転伝達機構。 The rotation transmission according to claim 4, wherein the brake member contacts one end surface of the load-bearing member to which the rotation load is applied on one side or the other side in the rotation axis direction among the plurality of rotation transmission members. mechanism. 前記ブレーキ部材は、バネワッシャーであることを特徴とする請求項５に記載の回転伝達機構。 The rotation transmission mechanism according to claim 5, wherein the brake member is a spring washer. 前記カム面形成部は、複数のカム面を備え、
前記噛合い部の前記従動車側の部位は、前記駆動車の回転に伴い、前記複数のカム面に対して順に摺動することを特徴とする請求項１から６の何れか一項に記載の回転伝達機構。 The cam surface forming portion includes a plurality of cam surfaces and has a plurality of cam surfaces.
The aspect according to any one of claims 1 to 6, wherein the portion of the meshing portion on the driven vehicle side slides in order with respect to the plurality of cam surfaces as the driving vehicle rotates. Rotation transmission mechanism. 前記駆動車と前記従動車は、前記噛合い部を複数備え、
前記複数の噛合い部は、前記駆動車および前記従動車の回転軸線方向で異なる位置に形成されていることを特徴とする請求項７に記載の回転伝達機構。 The driving vehicle and the driven vehicle are provided with a plurality of meshing portions.
The rotation transmission mechanism according to claim 7, wherein the plurality of meshing portions are formed at different positions in the rotation axis direction of the driving vehicle and the driven vehicle. 前記駆動車には、前記駆動車の外周面において階段状に配置される複数の駆動歯が設けられ、
前記従動車には、前記駆動車の回転に伴って前記複数の駆動歯と順に噛み合う複数の従動歯が前記従動車の外周面に階段状に設けられ、
前記噛合い部は、前記駆動歯と前記従動歯の対によって構成されていることを特徴とする請求項８に記載の回転伝達機構。 The drive vehicle is provided with a plurality of drive teeth arranged in a staircase pattern on the outer peripheral surface of the drive vehicle.
The driven vehicle is provided with a plurality of driven teeth that mesh with the plurality of driving teeth in order with the rotation of the driving vehicle in a stepped manner on the outer peripheral surface of the driven vehicle.
The rotation transmission mechanism according to claim 8, wherein the meshing portion is composed of a pair of the driving tooth and the driven tooth. 前記複数のカム面は、周方向の一方側から他方側に向かって外径が縮小しており、且つ
、周方向で隣り合うカム面は、当該カム面の外径の周方向での減少率が異なることを特徴とする請求項７から９のいずれか一項に記載の回転伝達機構。 The outer diameters of the plurality of cam surfaces decrease from one side in the circumferential direction toward the other side, and the cam surfaces adjacent to each other in the circumferential direction have a reduction rate of the outer diameter of the cam surfaces in the circumferential direction. The rotation transmission mechanism according to any one of claims 7 to 9, wherein the rotation transmission mechanism is different from each other. 前記従動車は、前記従動車の回転軸線方向から見て扇型であることを特徴とする請求項１から１０の何れか一項に記載の回転伝達機構。 The rotation transmission mechanism according to any one of claims 1 to 10, wherein the driven vehicle is fan-shaped when viewed from the rotation axis direction of the driven vehicle. 請求項１から１１の何れか一項に記載の前記回転伝達機構を備えたダンパ装置であって、
開口部が形成されたフレームと、
前記駆動車を駆動するモータと、
前記従動車の回転が伝達されて前記開口部を開閉するバッフルと、
を有することを特徴とするダンパ装置。 A damper device provided with the rotation transmission mechanism according to any one of claims 1 to 11.
The frame with the opening and
The motor that drives the driving vehicle and
A baffle that opens and closes the opening by transmitting the rotation of the driven vehicle,
A damper device characterized by having. 前記モータは、前記駆動車を一方側に駆動させる回転駆動力のみを出力可能であることを特徴とする請求項１２に記載のダンパ装置。 The damper device according to claim 12, wherein the motor can output only a rotational driving force for driving the driving vehicle to one side. 前記付勢部材は、前記バッフルを前記開口部に対する開方向あるいは閉方向に付勢することにより、前記バッフルを介して前記従動車を付勢することを特徴とする請求項１２または１３に記載のダンパ装置。 13. Damper device. 前記複数の回転伝達部材を回転可能に支持する回転支持部が設けられたケースを備え、
前記ブレーキ部材は、前記ケースと前記複数の回転伝達部材との間の少なくとも１箇所に配置されることを特徴とする請求項１２から１４の何れか一項に記載のダンパ装置。
A case provided with a rotation support portion that rotatably supports the plurality of rotation transmission members is provided.
The damper device according to any one of claims 12 to 14, wherein the brake member is arranged at at least one place between the case and the plurality of rotation transmission members.
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091549B (en) * 2016-05-27 2018-04-13 合肥华凌股份有限公司 Door opening/closing apparatus and refrigerator
CN111649533B (en) * 2020-05-21 2021-08-31 四川虹美智能科技有限公司 Air door control method, device and system
JP2022116910A (en) * 2021-01-29 2022-08-10 日本電産サンキョー株式会社 damper device and refrigerator
CN113002761A (en) * 2021-03-25 2021-06-22 上海机电工程研究所 Safety anti-sticking structure suitable for superspeed electric steering engine
CN113353257A (en) * 2021-06-11 2021-09-07 冯锦荣 Flapping wing aircraft with motor directly driving wing
CN113898325A (en) * 2021-10-22 2022-01-07 于婷婷 Pumping unit capable of realizing intermittent pumping through non-whole-cycle motion of crank without stopping

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821184A1 (en) 1996-07-22 1998-01-28 NUOVA VAMATEX S.p.A. Device to change a continuous rotary motion into a reciprocating rotary motion
JP2000130915A (en) 1998-10-23 2000-05-12 Sankyo Seiki Mfg Co Ltd Opening/closing device
JP2007232237A (en) 2006-02-28 2007-09-13 Nidec Sankyo Corp Damper device
US20100320053A1 (en) 2009-06-19 2010-12-23 Christof Goeke Driving device for an adjusting system of a motor vehicle
JP6428471B2 (en) 2015-04-28 2018-11-28 株式会社豊田中央研究所 heat pump

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515026A (en) * 1983-02-16 1985-05-07 Perkins Frank M Transmission
US4743938A (en) * 1984-10-16 1988-05-10 Canon Kabushiki Kaisha Color image forming apparatus
JPS6334344A (en) * 1986-07-28 1988-02-15 Yoshida Kogyo Kk <Ykk> Intermittent drive device
JPS6428471A (en) * 1987-07-24 1989-01-31 Matsushita Refrigeration Damper switchgear
DE3923378A1 (en) * 1989-07-14 1991-01-24 Bauser Julius Kontrolluhren Reversing drive mechanism for valve operation - has shaded pole motor, cleared rack-and-pinion drive with automatic clutch and dash-pot damper
JPH09318225A (en) * 1996-05-30 1997-12-12 Sankyo Seiki Mfg Co Ltd Double damper device
JPH10122723A (en) * 1996-10-23 1998-05-15 Miyamae:Kk Damper for refrigerator
JP3445723B2 (en) * 1997-05-02 2003-09-08 株式会社三協精機製作所 Double damper device
JP2902385B2 (en) * 1997-09-25 1999-06-07 株式会社マキシンコー Braking device for worm reducer with electric motor
US20050039553A1 (en) * 2003-08-22 2005-02-24 Yuan Chen Linear actuator
US7017887B1 (en) * 2004-11-22 2006-03-28 Campbell Hausfeld/Scott Fetzer Company Winch for boat trailer
DE102007017617B4 (en) * 2006-11-02 2016-06-09 Johnson Controls Gmbh Adjustment of a motor vehicle seat
FR2920751B1 (en) * 2007-09-12 2009-12-18 Leroy Somer Moteurs ENGINE EQUIPPED WITH AN AUXILIARY DRIVE SYSTEM.
JP2010078044A (en) * 2008-09-25 2010-04-08 Mitsuba Corp Clutch and motor with speed-reduction mechanism
UA108902C2 (en) 2010-11-10 2015-06-25 NORTH AMERICAN REPRODUCTIVE AND RESPIRATORY PIG SYNDROME (PRRS) VIRUS
JP2014054160A (en) * 2012-08-08 2014-03-20 Jtekt Corp Electric actuator
JP6261246B2 (en) * 2013-09-18 2018-01-17 日本電産サンキョー株式会社 Damper device
JP2015175404A (en) * 2014-03-14 2015-10-05 日本電産サンキョー株式会社 Drain valve driving device
JP6223273B2 (en) * 2014-04-30 2017-11-01 日本電産サンキョー株式会社 Damper device
US10132555B2 (en) * 2015-10-05 2018-11-20 Samsung Electronics Co., Ltd. Refrigerator
US10677333B2 (en) * 2016-12-20 2020-06-09 Nidec Sankyo Corporation Rotation transmission mechanism and damper device
IT201900006733A1 (en) * 2019-05-10 2020-11-10 Faac Spa MOTORIZED ACTUATOR AND MOBILE BARRIER EQUIPPED WITH THIS ACTUATOR, PARTICULARLY SUITABLE FOR AUXILIARY OR EMERGENCY DRIVES.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821184A1 (en) 1996-07-22 1998-01-28 NUOVA VAMATEX S.p.A. Device to change a continuous rotary motion into a reciprocating rotary motion
JP2000130915A (en) 1998-10-23 2000-05-12 Sankyo Seiki Mfg Co Ltd Opening/closing device
JP2007232237A (en) 2006-02-28 2007-09-13 Nidec Sankyo Corp Damper device
US20100320053A1 (en) 2009-06-19 2010-12-23 Christof Goeke Driving device for an adjusting system of a motor vehicle
JP6428471B2 (en) 2015-04-28 2018-11-28 株式会社豊田中央研究所 heat pump

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